chore(deps): bump @tootallnate/once and @vscode/test-electron (#1320)

Removes [@tootallnate/once](https://github.com/TooTallNate/once). It's
no longer used after updating ancestor dependency
[@vscode/test-electron](https://github.com/Microsoft/vscode-test). These
dependencies need to be updated together.

Removes `@tootallnate/once`

Updates `@vscode/test-electron` from 2.3.9 to 2.5.2
<details>
<summary>Changelog</summary>
<p><em>Sourced from <a
href="https://github.com/microsoft/vscode-test/blob/main/CHANGELOG.md"><code>@​vscode/test-electron</code>'s
changelog</a>.</em></p>
<blockquote>
<h3>2.5.2 | 2024-04-09</h3>
<ul>
<li>Fix install issue on various platforms</li>
</ul>
<h3>2.5.1 | 2024-04-07</h3>
<ul>
<li>Allow downloading server versions</li>
</ul>
<h3>2.5.0 | 2024-02-04</h3>
<ul>
<li>Fix deleting old Insiders in electron not working</li>
</ul>
<h3>2.4.1 | 2024-07-05</h3>
<ul>
<li>Throw a typed <code>TestRunFailedError</code> on failure instead of
a string.</li>
</ul>
<h3>2.4.0 | 2024-05-24</h3>
<ul>
<li>Allow installing unreleased builds using an <code>-unreleased</code>
suffix, such as <code>insiders-unreleased</code>.</li>
<li>Allow passing different data directories in
<code>runVSCodeCommand</code>, using it for extension development.</li>
<li>Improve the appearance progress reporting.</li>
</ul>
<h3>2.3.10 | 2024-05-13</h3>
<ul>
<li>Add <code>runVSCodeCommand</code> method and workaround for Node
CVE-2024-27980</li>
</ul>
</blockquote>
</details>
<details>
<summary>Commits</summary>
<ul>
<li><a
href="https://github.com/microsoft/vscode-test/commit/143e3c2b34ddf53617cc5dbfb61c844c17ebc9d1"><code>143e3c2</code></a>
2.5.2</li>
<li><a
href="https://github.com/microsoft/vscode-test/commit/3b5836019c9d9545b69f50e649c371bdc5fce539"><code>3b58360</code></a>
fix: installation error on various platforms</li>
<li><a
href="https://github.com/microsoft/vscode-test/commit/6a5daf713d75d0888e876e47e1beb09309f09326"><code>6a5daf7</code></a>
chore(deps): bump esbuild and vitest (<a
href="https://redirect.github.com/Microsoft/vscode-test/issues/306">#306</a>)</li>
<li><a
href="https://github.com/microsoft/vscode-test/commit/a08bb0e1e03ed5be8410d13e979071f53a1a1042"><code>a08bb0e</code></a>
chore(deps-dev): bump vite from 5.4.14 to 5.4.17 (<a
href="https://redirect.github.com/Microsoft/vscode-test/issues/307">#307</a>)</li>
<li><a
href="https://github.com/microsoft/vscode-test/commit/d5bfe645895fa4d44f57b247ac4efa5eb0b3a0ac"><code>d5bfe64</code></a>
chore: move to npm, drop yarn (<a
href="https://redirect.github.com/Microsoft/vscode-test/issues/305">#305</a>)</li>
<li><a
href="https://github.com/microsoft/vscode-test/commit/aa4ac32d0aca8a07579454aeb4967ecbb7c53100"><code>aa4ac32</code></a>
update pipeline</li>
<li><a
href="https://github.com/microsoft/vscode-test/commit/2f99366b799209a87da6b48b14a9d0aa88558569"><code>2f99366</code></a>
feat: allow downloading server versions (<a
href="https://redirect.github.com/Microsoft/vscode-test/issues/304">#304</a>)</li>
<li><a
href="https://github.com/microsoft/vscode-test/commit/eff2b636eebcbc42018fba58d0eb23b0778a0338"><code>eff2b63</code></a>
2.5.1</li>
<li><a
href="https://github.com/microsoft/vscode-test/commit/e960e8de63d87fa9e69197059bb83e94803de87c"><code>e960e8d</code></a>
chore: move to npm, drop yarn</li>
<li><a
href="https://github.com/microsoft/vscode-test/commit/70040b7781c24913f7b663524108719af05c7738"><code>70040b7</code></a>
Fix for 'Invalid extraction directory' on macOS (<a
href="https://redirect.github.com/Microsoft/vscode-test/issues/303">#303</a>)</li>
<li>Additional commits viewable in <a
href="https://github.com/Microsoft/vscode-test/compare/v2.3.9...v2.5.2">compare
view</a></li>
</ul>
</details>
<details>
<summary>Maintainer changes</summary>
<p>This version was pushed to npm by <a
href="https://www.npmjs.com/~microsoft1es">microsoft1es</a>, a new
releaser for <code>@​vscode/test-electron</code> since your current
version.</p>
</details>
<details>
<summary>Install script changes</summary>
<p>This version modifies <code>prepare</code> script that runs during
installation. Review the package contents before updating.</p>
</details>
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