build(deps): bump rand from 0.9.2 to 0.9.4 (#298)

Bumps [rand](https://github.com/rust-random/rand) from 0.9.2 to 0.9.4.
<details>
<summary>Changelog</summary>
<p><em>Sourced from <a
href="https://github.com/rust-random/rand/blob/0.9.4/CHANGELOG.md">rand's
changelog</a>.</em></p>
<blockquote>
<h2>[0.9.4] — 2026-04-13</h2>
<h3>Fixes</h3>
<ul>
<li>Fix doc build (<a
href="https://redirect.github.com/rust-random/rand/issues/1766">#1766</a>)</li>
</ul>
<p><a
href="https://redirect.github.com/rust-random/rand/issues/1766">#1766</a>:
<a
href="https://redirect.github.com/rust-random/rand/pull/1766">rust-random/rand#1766</a></p>
<h2>[0.9.3] — 2026-04-11</h2>
<p>This release back-ports a fix from v0.10. See also <a
href="https://redirect.github.com/rust-random/rand/issues/1763">#1763</a>.</p>
<h3>Changes</h3>
<ul>
<li>Deprecate feature <code>log</code> (<a
href="https://redirect.github.com/rust-random/rand/issues/1764">#1764</a>)</li>
<li>Replace usages of <code>doc_auto_cfg</code> (<a
href="https://redirect.github.com/rust-random/rand/issues/1764">#1764</a>)</li>
</ul>
<p><a
href="https://redirect.github.com/rust-random/rand/issues/1763">#1763</a>:
<a
href="https://redirect.github.com/rust-random/rand/pull/1763">rust-random/rand#1763</a></p>
</blockquote>
</details>
<details>
<summary>Commits</summary>
<ul>
<li><a
href="https://github.com/rust-random/rand/commit/ba4c4c62d5a3dc73a5c975a53d9a139372c011cc"><code>ba4c4c6</code></a>
Prepare v0.9.4: fix doc build (<a
href="https://redirect.github.com/rust-random/rand/issues/1766">#1766</a>)</li>
<li><a
href="https://github.com/rust-random/rand/commit/4b8b686ef3d16f3ed0ebabc4af881bdd59fd5e80"><code>4b8b686</code></a>
Document new error-handling behaviour for ReseedingRng</li>
<li><a
href="https://github.com/rust-random/rand/commit/6c25c6dd07da7b25ca4299899bb348c896d05570"><code>6c25c6d</code></a>
Prepare v0.9.4: fix doc build</li>
<li><a
href="https://github.com/rust-random/rand/commit/1aeee9f4c506f9f737c6c37c169ccdc365bfbabf"><code>1aeee9f</code></a>
Prepare v0.9.3: deprecate feature <code>log</code> (<a
href="https://redirect.github.com/rust-random/rand/issues/1764">#1764</a>)</li>
<li><a
href="https://github.com/rust-random/rand/commit/98473ee6f9b44eb85154b59b67adade7f2a9b8a1"><code>98473ee</code></a>
Prepare rand 0.9.2 (<a
href="https://redirect.github.com/rust-random/rand/issues/1648">#1648</a>)</li>
<li><a
href="https://github.com/rust-random/rand/commit/031a1f5589e487ce95972cb3acc0833ef64cfc10"><code>031a1f5</code></a>
<code>examples/print-next.rs</code> (<a
href="https://redirect.github.com/rust-random/rand/issues/1647">#1647</a>)</li>
<li><a
href="https://github.com/rust-random/rand/commit/6cb75ee59eda73967b6a3cae4fdcf2c21f6e0e4e"><code>6cb75ee</code></a>
Make UniformUsize serializable (<a
href="https://redirect.github.com/rust-random/rand/issues/1646">#1646</a>)</li>
<li><a
href="https://github.com/rust-random/rand/commit/0c955c5b7a079bc2fe67fe946a8deb46c4bc58d8"><code>0c955c5</code></a>
Add some tests for BlockRng, BlockRng64 and Xoshiro RNGs (<a
href="https://redirect.github.com/rust-random/rand/issues/1639">#1639</a>)</li>
<li><a
href="https://github.com/rust-random/rand/commit/204084a35fc7289e9a38575fdd80869818484517"><code>204084a</code></a>
Fix: Remove accidental editor swap file (<a
href="https://redirect.github.com/rust-random/rand/issues/1636">#1636</a>)</li>
<li><a
href="https://github.com/rust-random/rand/commit/86262ac190ec20a79293607fb2347dc74c99122e"><code>86262ac</code></a>
Deprecate rand::rngs::mock module and StepRng (<a
href="https://redirect.github.com/rust-random/rand/issues/1634">#1634</a>)</li>
<li>Additional commits viewable in <a
href="https://github.com/rust-random/rand/compare/rand_core-0.9.2...0.9.4">compare
view</a></li>
</ul>
</details>
<br />

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