chore(deps): Bump nixpkgs from 705e992 to b51242d (#53)

Bumps [nixpkgs](https://github.com/NixOS/nixpkgs) from `705e992` to
`b51242d`.
<details>
<summary>Commits</summary>
<ul>
<li><a
href="https://github.com/NixOS/nixpkgs/commit/b51242d7d43689db2f3be91bd05d5b24fbb469c4"><code>b51242d</code></a>
[Backport release-26.05] git-pages: init at 0.9.0 (<a
href="https://redirect.github.com/NixOS/nixpkgs/issues/526211">#526211</a>)</li>
<li><a
href="https://github.com/NixOS/nixpkgs/commit/d2c03a4ed3038b4af2a3cab7574b613520720e21"><code>d2c03a4</code></a>
[Backport release-26.05] nezha: 2.0.11 -&gt; 2.0.14 (<a
href="https://redirect.github.com/NixOS/nixpkgs/issues/526073">#526073</a>)</li>
<li><a
href="https://github.com/NixOS/nixpkgs/commit/9578ac985cfc1f9d99f82798dc33651a16f54e15"><code>9578ac9</code></a>
git-pages: init at 0.9.0</li>
<li><a
href="https://github.com/NixOS/nixpkgs/commit/d9b8d66c8b9042dd83a92f41f30620246b12ee8d"><code>d9b8d66</code></a>
[Backport release-26.05] n64recomp: 0-unstable-2026-05-17 -&gt;
0-unstable-2026-...</li>
<li><a
href="https://github.com/NixOS/nixpkgs/commit/4a93c1c9d0fd88593e0be8b7a5e04c49263d0a51"><code>4a93c1c</code></a>
n64recomp: 0-unstable-2026-05-17 -&gt; 0-unstable-2026-05-27</li>
<li><a
href="https://github.com/NixOS/nixpkgs/commit/9396caa0b59af6a17cac62008a72255b25e1e9a8"><code>9396caa</code></a>
[Backport release-26.05] pgdog: 0.1.41 -&gt; 0.1.42 (<a
href="https://redirect.github.com/NixOS/nixpkgs/issues/526148">#526148</a>)</li>
<li><a
href="https://github.com/NixOS/nixpkgs/commit/673d5f4cf6b7bd5494defdbaed6d11ab30d53c80"><code>673d5f4</code></a>
pgdog: 0.1.41 -&gt; 0.1.42</li>
<li><a
href="https://github.com/NixOS/nixpkgs/commit/5d1ce5088b22baf9aa7d800fbea2b8229a93e92d"><code>5d1ce50</code></a>
[Backport release-26.05] exiftags: fix build (<a
href="https://redirect.github.com/NixOS/nixpkgs/issues/525797">#525797</a>)</li>
<li><a
href="https://github.com/NixOS/nixpkgs/commit/3d848a6f9ead7ec04198f85b0a25f37a61a81a46"><code>3d848a6</code></a>
[Backport release-26.05] nixos/home-assistant: open sonos component
specific ...</li>
<li><a
href="https://github.com/NixOS/nixpkgs/commit/a4749744c40e7026782999333053ef53d18c1d8f"><code>a474974</code></a>
[Backport release-26.05] {esbuild,esbuild_netlify}: move to by-name (<a
href="https://redirect.github.com/NixOS/nixpkgs/issues/526132">#526132</a>)</li>
<li>Additional commits viewable in <a
href="https://github.com/NixOS/nixpkgs/compare/705e9929918b43bd7b715dc0a878ac870449bb03...b51242d7d43689db2f3be91bd05d5b24fbb469c4">compare
view</a></li>
</ul>
</details>
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