Bump maven-source-plugin from 3.2.1 to 3.3.0

Bumps [maven-source-plugin](https://github.com/apache/maven-source-plugin) from 3.2.1 to 3.3.0.
<details>
<summary>Commits</summary>
<ul>
<li><a href="https://github.com/apache/maven-source-plugin/commit/02a984779ed6157698fdb9235e5e66154b3d24e7"><code>02a9847</code></a> [maven-release-plugin] prepare release maven-source-plugin-3.3.0</li>
<li><a href="https://github.com/apache/maven-source-plugin/commit/f186993414e076abcf70b960b487813a6b1df8b7"><code>f186993</code></a> [MSOURCES-135] Cleanup project code</li>
<li><a href="https://github.com/apache/maven-source-plugin/commit/021af551aedf361dec82a5f6808054030ac47e8b"><code>021af55</code></a> [MSOURCES-134] Refresh download page</li>
<li><a href="https://github.com/apache/maven-source-plugin/commit/b11a457ba99a83fb5808b132967b4ddcc9523e89"><code>b11a457</code></a> Use shared GitHub actions v3</li>
<li><a href="https://github.com/apache/maven-source-plugin/commit/7caf2b0debe39afa2d1aff4fa38fa38b8988acad"><code>7caf2b0</code></a> [MSOURCES-133] Upgrade Parent to 39 - ignore git blame</li>
<li><a href="https://github.com/apache/maven-source-plugin/commit/dee4c1000d57c8c385cfe1147c81950371437d4b"><code>dee4c10</code></a> [MSOURCES-133] Upgrade Parent to 39</li>
<li><a href="https://github.com/apache/maven-source-plugin/commit/452111f29c36260640ae2cebc2afd8ec5f6279a0"><code>452111f</code></a> Add dependabot configuration</li>
<li><a href="https://github.com/apache/maven-source-plugin/commit/e691ac3b7f0f451e9da973e7734e07671b21efa9"><code>e691ac3</code></a> s/MSOURCE/MSOURCES/</li>
<li><a href="https://github.com/apache/maven-source-plugin/commit/1ddffd8923b65e37b28abf60120f979ea6238a23"><code>1ddffd8</code></a> Auto-link MSOURCE Jira</li>
<li><a href="https://github.com/apache/maven-source-plugin/commit/37ffefea6f479bbd78e89a2df97b4acd5b57f5b3"><code>37ffefe</code></a> Add pull request template</li>
<li>Additional commits viewable in <a href="https://github.com/apache/maven-source-plugin/compare/maven-source-plugin-3.2.1...maven-source-plugin-3.3.0">compare view</a></li>
</ul>
</details>
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</details>

Fixes #238

COPYBARA_INTEGRATE_REVIEW=#238 from google:dependabot/maven/org.apache.maven.plugins-maven-source-plugin-3.3.0 f6228ad
PiperOrigin-RevId: 534055928

pom.xml

@@ -172,7 +172,7 @@
         </plugin>
         <plugin>
           <artifactId>maven-source-plugin</artifactId>
-          <version>3.2.1</version>
+          <version>3.3.0</version>
         </plugin>
         <plugin>
           <artifactId>maven-javadoc-plugin</artifactId>