chore: Bump fastify and netlify-cli in /docs (#370)

Removes [fastify](https://github.com/fastify/fastify). It's no longer
used after updating ancestor dependency
[netlify-cli](https://github.com/netlify/cli). These dependencies need
to be updated together.

Removes `fastify`

Updates `netlify-cli` from 23.15.1 to 24.8.1
<details>
<summary>Release notes</summary>
<p><em>Sourced from <a
href="https://github.com/netlify/cli/releases">netlify-cli's
releases</a>.</em></p>
<blockquote>
<h2>v24.8.1</h2>
<h2><a
href="https://github.com/netlify/cli/compare/v24.8.0...v24.8.1">24.8.1</a>
(2026-03-27)</h2>
<h3>Bug Fixes</h3>
<ul>
<li>improve ax error handling around missing commands or unknown flags
(<a
href="https://github.com/netlify/cli/commit/07153107f1f1f22cfc1c833722c56ba284932d78">0715310</a>)</li>
</ul>
<h2>v24.8.0</h2>
<h2><a
href="https://github.com/netlify/cli/compare/v24.7.0...v24.8.0">24.8.0</a>
(2026-03-27)</h2>
<h3>Features</h3>
<ul>
<li>set <code>branch</code> as <code>alias</code> on <code>deploy</code>
command (<a
href="https://redirect.github.com/netlify/cli/issues/8111">#8111</a>)
(<a
href="https://github.com/netlify/cli/commit/c08644e38c41d568b980883c337f4735945e1cd6">c08644e</a>)</li>
</ul>
<h3>Bug Fixes</h3>
<ul>
<li><strong>deps:</strong> bump node-forge from 1.3.2 to 1.4.0 (<a
href="https://redirect.github.com/netlify/cli/issues/8114">#8114</a>)
(<a
href="https://github.com/netlify/cli/commit/3fc2aec0a410e79063df44f80cc3dbefa353a5ab">3fc2aec</a>)</li>
<li><strong>deps:</strong> bump yaml from 2.8.1 to 2.8.3 (<a
href="https://redirect.github.com/netlify/cli/issues/8101">#8101</a>)
(<a
href="https://github.com/netlify/cli/commit/e95762d3ddd747e11d9f0ef63d0211b2f567d25c">e95762d</a>)</li>
</ul>
<h2>v24.7.0</h2>
<h2><a
href="https://github.com/netlify/cli/compare/v24.6.2...v24.7.0">24.7.0</a>
(2026-03-27)</h2>
<h3>Features</h3>
<ul>
<li>support --allow-anonymous deploys (<a
href="https://redirect.github.com/netlify/cli/issues/8109">#8109</a>)
(<a
href="https://github.com/netlify/cli/commit/9dee49e41941977d5ed079265e6118c4c94f75f3">9dee49e</a>)</li>
</ul>
<h3>Bug Fixes</h3>
<ul>
<li><strong>deps:</strong> update netlify packages (<a
href="https://redirect.github.com/netlify/cli/issues/8105">#8105</a>)
(<a
href="https://github.com/netlify/cli/commit/42a46bf43ff0b9a651eefd985d20e54fc8179d19">42a46bf</a>)</li>
</ul>
<h2>v24.6.2</h2>
<h2><a
href="https://github.com/netlify/cli/compare/v24.6.1...v24.6.2">24.6.2</a>
(2026-03-26)</h2>
<h3>Bug Fixes</h3>
<ul>
<li>deploy DB migrations (<a
href="https://redirect.github.com/netlify/cli/issues/8103">#8103</a>)
(<a
href="https://github.com/netlify/cli/commit/8d7c0a584d00c8e4765bab040459886f45b42265">8d7c0a5</a>)</li>
<li><strong>deps:</strong> update dependency fastify to v5.8.3
[security] (<a
href="https://redirect.github.com/netlify/cli/issues/8096">#8096</a>)
(<a
href="https://github.com/netlify/cli/commit/d3a305953d15d937854137ad3b8d667a6ff3e0fb">d3a3059</a>)</li>
</ul>
<h2>v24.6.1</h2>
<h2><a
href="https://github.com/netlify/cli/compare/v24.6.0...v24.6.1">24.6.1</a>
(2026-03-25)</h2>
<h3>Bug Fixes</h3>
<!-- raw HTML omitted -->
</blockquote>
<p>... (truncated)</p>
</details>
<details>
<summary>Changelog</summary>
<p><em>Sourced from <a
href="https://github.com/netlify/cli/blob/main/CHANGELOG.md">netlify-cli's
changelog</a>.</em></p>
<blockquote>
<h2><a
href="https://github.com/netlify/cli/compare/v24.8.0...v24.8.1">24.8.1</a>
(2026-03-27)</h2>
<h3>Bug Fixes</h3>
<ul>
<li>improve ax error handling around missing commands or unknown flags
(<a
href="https://github.com/netlify/cli/commit/07153107f1f1f22cfc1c833722c56ba284932d78">0715310</a>)</li>
</ul>
<h2><a
href="https://github.com/netlify/cli/compare/v24.7.0...v24.8.0">24.8.0</a>
(2026-03-27)</h2>
<h3>Features</h3>
<ul>
<li>set <code>branch</code> as <code>alias</code> on <code>deploy</code>
command (<a
href="https://redirect.github.com/netlify/cli/issues/8111">#8111</a>)
(<a
href="https://github.com/netlify/cli/commit/c08644e38c41d568b980883c337f4735945e1cd6">c08644e</a>)</li>
</ul>
<h3>Bug Fixes</h3>
<ul>
<li><strong>deps:</strong> bump node-forge from 1.3.2 to 1.4.0 (<a
href="https://redirect.github.com/netlify/cli/issues/8114">#8114</a>)
(<a
href="https://github.com/netlify/cli/commit/3fc2aec0a410e79063df44f80cc3dbefa353a5ab">3fc2aec</a>)</li>
<li><strong>deps:</strong> bump yaml from 2.8.1 to 2.8.3 (<a
href="https://redirect.github.com/netlify/cli/issues/8101">#8101</a>)
(<a
href="https://github.com/netlify/cli/commit/e95762d3ddd747e11d9f0ef63d0211b2f567d25c">e95762d</a>)</li>
</ul>
<h2><a
href="https://github.com/netlify/cli/compare/v24.6.2...v24.7.0">24.7.0</a>
(2026-03-27)</h2>
<h3>Features</h3>
<ul>
<li>support --allow-anonymous deploys (<a
href="https://redirect.github.com/netlify/cli/issues/8109">#8109</a>)
(<a
href="https://github.com/netlify/cli/commit/9dee49e41941977d5ed079265e6118c4c94f75f3">9dee49e</a>)</li>
</ul>
<h3>Bug Fixes</h3>
<ul>
<li><strong>deps:</strong> update netlify packages (<a
href="https://redirect.github.com/netlify/cli/issues/8105">#8105</a>)
(<a
href="https://github.com/netlify/cli/commit/42a46bf43ff0b9a651eefd985d20e54fc8179d19">42a46bf</a>)</li>
</ul>
<h2><a
href="https://github.com/netlify/cli/compare/v24.6.1...v24.6.2">24.6.2</a>
(2026-03-26)</h2>
<h3>Bug Fixes</h3>
<ul>
<li>deploy DB migrations (<a
href="https://redirect.github.com/netlify/cli/issues/8103">#8103</a>)
(<a
href="https://github.com/netlify/cli/commit/8d7c0a584d00c8e4765bab040459886f45b42265">8d7c0a5</a>)</li>
<li><strong>deps:</strong> update dependency fastify to v5.8.3
[security] (<a
href="https://redirect.github.com/netlify/cli/issues/8096">#8096</a>)
(<a
href="https://github.com/netlify/cli/commit/d3a305953d15d937854137ad3b8d667a6ff3e0fb">d3a3059</a>)</li>
</ul>
<h2><a
href="https://github.com/netlify/cli/compare/v24.6.0...v24.6.1">24.6.1</a>
(2026-03-25)</h2>
<h3>Bug Fixes</h3>
<ul>
<li>support for --json on sites (<a
href="https://redirect.github.com/netlify/cli/issues/8093">#8093</a>)
(<a
href="https://github.com/netlify/cli/commit/c13e11f85f5dd8196a2973a52dc90997793502a7">c13e11f</a>)</li>
</ul>
<h2><a
href="https://github.com/netlify/cli/compare/v24.5.1...v24.6.0">24.6.0</a>
(2026-03-25)</h2>
<!-- raw HTML omitted -->
</blockquote>
<p>... (truncated)</p>
</details>
<details>
<summary>Commits</summary>
<ul>
<li><a
href="https://github.com/netlify/cli/commit/26eaa6c7e68e962c82c90736688b4f2ad21e9054"><code>26eaa6c</code></a>
chore(main): release 24.8.1</li>
<li><a
href="https://github.com/netlify/cli/commit/07153107f1f1f22cfc1c833722c56ba284932d78"><code>0715310</code></a>
fix: improve ax error handling around missing commands or unknown
flags</li>
<li><a
href="https://github.com/netlify/cli/commit/056268a9084338d9fc5fec0a790cb3485171c4a7"><code>056268a</code></a>
chore(deps): update dependency serialize-javascript to v7.0.5 [security]
(<a
href="https://redirect.github.com/netlify/cli/issues/8120">#8120</a>)</li>
<li><a
href="https://github.com/netlify/cli/commit/3cefa0eaa731528e79e341e7e33a1d3e10ae5a44"><code>3cefa0e</code></a>
chore(main): release 24.8.0 (<a
href="https://redirect.github.com/netlify/cli/issues/8115">#8115</a>)</li>
<li><a
href="https://github.com/netlify/cli/commit/c08644e38c41d568b980883c337f4735945e1cd6"><code>c08644e</code></a>
feat: set <code>branch</code> as <code>alias</code> on
<code>deploy</code> command (<a
href="https://redirect.github.com/netlify/cli/issues/8111">#8111</a>)</li>
<li><a
href="https://github.com/netlify/cli/commit/e95762d3ddd747e11d9f0ef63d0211b2f567d25c"><code>e95762d</code></a>
fix(deps): bump yaml from 2.8.1 to 2.8.3 (<a
href="https://redirect.github.com/netlify/cli/issues/8101">#8101</a>)</li>
<li><a
href="https://github.com/netlify/cli/commit/3fc2aec0a410e79063df44f80cc3dbefa353a5ab"><code>3fc2aec</code></a>
fix(deps): bump node-forge from 1.3.2 to 1.4.0 (<a
href="https://redirect.github.com/netlify/cli/issues/8114">#8114</a>)</li>
<li><a
href="https://github.com/netlify/cli/commit/83a952bd6caed841d07383fde7202535e58382d5"><code>83a952b</code></a>
chore(main): release 24.7.0 (<a
href="https://redirect.github.com/netlify/cli/issues/8108">#8108</a>)</li>
<li><a
href="https://github.com/netlify/cli/commit/1fd371ef0103e1dd885993b5d306a4e7f6dc9d53"><code>1fd371e</code></a>
chore(website): update dependency astro to v5.18.1 [security] (<a
href="https://redirect.github.com/netlify/cli/issues/8107">#8107</a>)</li>
<li><a
href="https://github.com/netlify/cli/commit/9dee49e41941977d5ed079265e6118c4c94f75f3"><code>9dee49e</code></a>
feat: support --allow-anonymous deploys (<a
href="https://redirect.github.com/netlify/cli/issues/8109">#8109</a>)</li>
<li>Additional commits viewable in <a
href="https://github.com/netlify/cli/compare/v23.15.1...v24.8.1">compare
view</a></li>
</ul>
</details>
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