Bump junit from 4.12 to 4.13.1 in /java

Bumps [junit](https://github.com/junit-team/junit4) from 4.12 to 4.13.1.
- [Release notes](https://github.com/junit-team/junit4/releases)
- [Changelog](https://github.com/junit-team/junit4/blob/main/doc/ReleaseNotes4.12.md)
- [Commits](junit-team/junit4@r4.12...r4.13.1)

Signed-off-by: dependabot[bot] <support@github.com>

Author: dependabot[bot]

java/pom.xml

@@ -271,7 +271,7 @@
         <threetenbp-version>1.4.4</threetenbp-version>
         <maven-plugin-version>1.0.0</maven-plugin-version>
         <javax-annotation-version>1.0</javax-annotation-version>
-        <junit-version>4.12</junit-version>
+        <junit-version>4.13.1</junit-version>
         <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
     </properties>
 </project>