build(deps): Bump heck from 0.4.1 to 0.5.0 (#438)

Bumps [heck](https://github.com/withoutboats/heck) from 0.4.1 to 0.5.0.
<details>
<summary>Changelog</summary>
<p><em>Sourced from <a href="https://github.com/withoutboats/heck/blob/master/CHANGELOG.md">heck's changelog</a>.</em></p>
<blockquote>
<h1>0.5.0</h1>
<ul>
<li>Add <code>no_std</code> support.</li>
<li>Remove non-additive <code>unicode</code> feature. The library now uses <code>char::is_alphanumeric</code>
instead of the <code>unicode-segmentation</code> library to determine word boundaries in all cases.</li>
</ul>
</blockquote>
</details>
<details>
<summary>Commits</summary>
<ul>
<li>See full diff in <a href="https://github.com/withoutboats/heck/commits">compare view</a></li>
</ul>
</details>
<br />


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packages/proto-build/Cargo.toml

@@ -5,7 +5,7 @@ version = "0.1.0"
 publish = false
 
 [dependencies]
-heck = "0.4.0"
+heck = "0.5.0"
 itertools = "0.12.1"
 log = "0.4.21"
 pretty_env_logger = "0.5.0"