Bump org.junit:junit-bom from 5.12.0 to 5.12.1 (#244)

Bumps [org.junit:junit-bom](https://github.com/junit-team/junit5) from
5.12.0 to 5.12.1.
<details>
<summary>Release notes</summary>
<p><em>Sourced from <a
href="https://github.com/junit-team/junit5/releases">org.junit:junit-bom's
releases</a>.</em></p>
<blockquote>
<p>JUnit 5.12.1 = Platform 1.12.1 + Jupiter 5.12.1 + Vintage 5.12.1</p>
<p>See <a
href="https://junit.org/junit5/docs/5.12.1/release-notes/">Release
Notes</a>.</p>
<p><strong>Full Changelog</strong>: <a
href="https://github.com/junit-team/junit5/compare/r5.12.0...r5.12.1">https://github.com/junit-team/junit5/compare/r5.12.0...r5.12.1</a></p>
</blockquote>
</details>
<details>
<summary>Commits</summary>
<ul>
<li><a
href="https://github.com/junit-team/junit5/commit/ba9c9ae111f5f06645ebcda2bb831c8e093cc002"><code>ba9c9ae</code></a>
Release 5.12.1</li>
<li><a
href="https://github.com/junit-team/junit5/commit/e28ad4a89047da0aca6aca32b0e45ac8309954e1"><code>e28ad4a</code></a>
Finalize 5.12.1 release notes</li>
<li><a
href="https://github.com/junit-team/junit5/commit/1044e2c63c435f735ab78dbbca09e78b13fb5f80"><code>1044e2c</code></a>
Move entry to 5.12.1 release notes</li>
<li><a
href="https://github.com/junit-team/junit5/commit/bea821d69ae8848aa21f7ee10692c6185abfc9ac"><code>bea821d</code></a>
Fix Javadoc formatting</li>
<li><a
href="https://github.com/junit-team/junit5/commit/1a1a67daee1507ae85a25ec0f57bce98d6824b39"><code>1a1a67d</code></a>
Set stable module name for the standalone JAR file</li>
<li><a
href="https://github.com/junit-team/junit5/commit/062d3fa175d94010c24054fb44b2566955ba95ae"><code>062d3fa</code></a>
Remove internal packages from API reports</li>
<li><a
href="https://github.com/junit-team/junit5/commit/74521ab55ca19269e4cf628ed738d0382a1699c9"><code>74521ab</code></a>
Introduce <code>ExtensionContext.getEnclosingTestClasses()</code></li>
<li><a
href="https://github.com/junit-team/junit5/commit/1e135b9d37a88bc0319b98ddcfc050fc0cf89a98"><code>1e135b9</code></a>
Create initial 5.12.1 release notes from template</li>
<li><a
href="https://github.com/junit-team/junit5/commit/d540e4ff3aeb13a3b3167515efa6ed1ec00b0773"><code>d540e4f</code></a>
Link to correct method</li>
<li><a
href="https://github.com/junit-team/junit5/commit/31d60b7751e415853b582a275fe626b0358ab939"><code>31d60b7</code></a>
Split API reports by module and package</li>
<li>Additional commits viewable in <a
href="https://github.com/junit-team/junit5/compare/r5.12.0...r5.12.1">compare
view</a></li>
</ul>
</details>
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gradle/libs.versions.toml

@@ -3,7 +3,7 @@ assertj = "3.27.3"
 buf = "1.50.1"
 cel = "0.5.1"
 ipaddress = "5.5.1"
-junit = "5.12.0"
+junit = "5.12.1"
 maven-publish = "0.31.0"
 # When updating, make sure to update versions in the following files to match and regenerate code with 'make generate'.
 # - buf.gen.yaml