build(deps): bump hashbrown from 0.15.3 to 0.15.4 (#37350)

Bumps [hashbrown](https://github.com/rust-lang/hashbrown) from 0.15.3 to
0.15.4.
<details>
<summary>Release notes</summary>
<p><em>Sourced from <a
href="https://github.com/rust-lang/hashbrown/releases">hashbrown's
releases</a>.</em></p>
<blockquote>
<h2>v0.15.4</h2>
<h3>Changed</h3>
<ul>
<li>Removed optional dependency on compiler-builtins. This only affects
building as part of <code>std</code>.</li>
</ul>
</blockquote>
</details>
<details>
<summary>Changelog</summary>
<p><em>Sourced from <a
href="https://github.com/rust-lang/hashbrown/blob/master/CHANGELOG.md">hashbrown's
changelog</a>.</em></p>
<blockquote>
<h2><a
href="https://github.com/rust-lang/hashbrown/compare/v0.15.3...v0.15.4">0.15.4</a>
- 2025-06-05</h2>
<h3>Changed</h3>
<ul>
<li>Removed optional dependency on compiler-builtins. This only affects
building as part of <code>std</code>.</li>
</ul>
</blockquote>
</details>
<details>
<summary>Commits</summary>
<ul>
<li><a
href="8ceeb4045f"><code>8ceeb40</code></a>
Update CHANGELOG.md</li>
<li><a
href="b9be6808d6"><code>b9be680</code></a>
chore: release v0.15.4</li>
<li><a
href="53cf3532ff"><code>53cf353</code></a>
Merge pull request <a
href="https://redirect.github.com/rust-lang/hashbrown/issues/625">#625</a>
from tgross35/no-compiler-builtins</li>
<li><a
href="197a1ebf65"><code>197a1eb</code></a>
Remove optional dependency on compiler-builtins</li>
<li><a
href="d3a2a3d752"><code>d3a2a3d</code></a>
Merge pull request <a
href="https://redirect.github.com/rust-lang/hashbrown/issues/623">#623</a>
from cppbear/add-tests</li>
<li><a
href="165fdcfb58"><code>165fdcf</code></a>
Merge pull request <a
href="https://redirect.github.com/rust-lang/hashbrown/issues/622">#622</a>
from AbeZbm/add-tests</li>
<li><a
href="e52627b92d"><code>e52627b</code></a>
test: add test for HashMap::get_mut with non-existent key</li>
<li><a
href="c1cd0c6827"><code>c1cd0c6</code></a>
Add missing test for set</li>
<li><a
href="62634581de"><code>6263458</code></a>
Merge pull request <a
href="https://redirect.github.com/rust-lang/hashbrown/issues/620">#620</a>
from rust-lang/release-plz-2025-04-29T17-31-59Z</li>
<li>See full diff in <a
href="https://github.com/rust-lang/hashbrown/compare/v0.15.3...v0.15.4">compare
view</a></li>
</ul>
</details>
<br />


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Cargo.lock

@@ -3145,9 +3145,9 @@ dependencies = [
 
 [[package]]
 name = "hashbrown"
-version = "0.15.3"
+version = "0.15.4"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "84b26c544d002229e640969970a2e74021aadf6e2f96372b9c58eff97de08eb3"
+checksum = "5971ac85611da7067dbfcabef3c70ebb5606018acd9e2a3903a0da507521e0d5"
 dependencies = [
  "foldhash",
  "serde",