Bump junit from 4.13 to 4.13.1

Bumps [junit](https://github.com/junit-team/junit4) from 4.13 to 4.13.1.
<details>
<summary>Release notes</summary>
<p><em>Sourced from <a href="https://github.com/junit-team/junit4/releases">junit's releases</a>.</em></p>
<blockquote>
<h2>JUnit 4.13.1</h2>
<p>Please refer to the <a href="https://github.com/junit-team/junit/blob/HEAD/doc/ReleaseNotes4.13.md">release notes</a> for details.</p>
</blockquote>
</details>
<details>
<summary>Changelog</summary>
<p><em>Sourced from <a href="https://github.com/junit-team/junit4/blob/main/doc/ReleaseNotes4.13.1.md">junit's changelog</a>.</em></p>
<blockquote>
<h2>Summary of changes in version 4.13.1</h2>
<h1>Rules</h1>
<h3>Security fix: <code>TemporaryFolder</code> now limits access to temporary folders on Java 1.7 or later</h3>
<p>A local information disclosure vulnerability in <code>TemporaryFolder</code> has been fixed. See the published <a href="https://github.com/junit-team/junit4/security/advisories/GHSA-269g-pwp5-87pp">security advisory</a> for details.</p>
<h1>Test Runners</h1>
<h3>[Pull request <a href="https://github-redirect.dependabot.com/junit-team/junit4/issues/1669">#1669</a>:](<a href="https://github-redirect.dependabot.com/junit-team/junit/pull/1669">junit-team/junit#1669</a>) Make <code>FrameworkField</code> constructor public</h3>
<p>Prior to this change, custom runners could make <code>FrameworkMethod</code> instances, but not <code>FrameworkField</code> instances. This small change allows for both now, because <code>FrameworkField</code>'s constructor has been promoted from package-private to public.</p>
</blockquote>
</details>
<details>
<summary>Commits</summary>
<ul>
<li><a href="https://github.com/junit-team/junit4/commit/1b683f4ec07bcfa40149f086d32240f805487e66"><code>1b683f4</code></a> [maven-release-plugin] prepare release r4.13.1</li>
<li><a href="https://github.com/junit-team/junit4/commit/ce6ce3aadc070db2902698fe0d3dc6729cd631f2"><code>ce6ce3a</code></a> Draft 4.13.1 release notes</li>
<li><a href="https://github.com/junit-team/junit4/commit/c29dd8239d6b353e699397eb090a1fd27411fa24"><code>c29dd82</code></a> Change version to 4.13.1-SNAPSHOT</li>
<li><a href="https://github.com/junit-team/junit4/commit/1d174861f0b64f97ab0722bb324a760bfb02f567"><code>1d17486</code></a> Add a link to assertThrows in exception testing</li>
<li><a href="https://github.com/junit-team/junit4/commit/543905df72ff10364b94dda27552efebf3dd04e9"><code>543905d</code></a> Use separate line for annotation in Javadoc</li>
<li><a href="https://github.com/junit-team/junit4/commit/510e906b391e7e46a346e1c852416dc7be934944"><code>510e906</code></a> Add sub headlines to class Javadoc</li>
<li><a href="https://github.com/junit-team/junit4/commit/610155b8c22138329f0723eec22521627dbc52ae"><code>610155b</code></a> Merge pull request from GHSA-269g-pwp5-87pp</li>
<li><a href="https://github.com/junit-team/junit4/commit/b6cfd1e3d736cc2106242a8be799615b472c7fec"><code>b6cfd1e</code></a> Explicitly wrap float parameter for consistency (<a href="https://github-redirect.dependabot.com/junit-team/junit4/issues/1671">#1671</a>)</li>
<li><a href="https://github.com/junit-team/junit4/commit/a5d205c7956dbed302b3bb5ecde5ba4299f0b646"><code>a5d205c</code></a> Fix GitHub link in FAQ (<a href="https://github-redirect.dependabot.com/junit-team/junit4/issues/1672">#1672</a>)</li>
<li><a href="https://github.com/junit-team/junit4/commit/3a5c6b4d08f408c8ca6a8e0bae71a9bc5a8f97e8"><code>3a5c6b4</code></a> Deprecated since jdk9 replacing constructor instance of Double and Float (<a href="https://github-redirect.dependabot.com/junit-team/junit4/issues/1660">#1660</a>)</li>
<li>Additional commits viewable in <a href="https://github.com/junit-team/junit4/compare/r4.13...r4.13.1">compare view</a></li>
</ul>
</details>
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Fixes #121

COPYBARA_INTEGRATE_REVIEW=#121 from google:dependabot/maven/junit-junit-4.13.1 165094a
PiperOrigin-RevId: 336661153

pom.xml

@@ -136,7 +136,7 @@
       <dependency>
         <groupId>junit</groupId>
         <artifactId>junit</artifactId>
-        <version>4.13</version>
+        <version>4.13.1</version>
         <scope>test</scope>
       </dependency>
       <dependency>