Bump junit

Bumps [junit](https://github.com/junit-team/junit4) from 4.8.1 to 4.13.1.
- [Release notes](https://github.com/junit-team/junit4/releases)
- [Changelog](https://github.com/junit-team/junit4/blob/main/doc/ReleaseNotes4.13.1.md)
- [Commits](junit-team/junit4@r4.8.1...r4.13.1)

---
updated-dependencies:
- dependency-name: junit:junit
  dependency-type: direct:production
...

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

pitest-maven-verification/src/test/resources/pit-sub-module/sub-module-2/pom.xml

@@ -32,6 +32,6 @@
 		</plugins>
 	</build>
 	<properties>
-		<junit.version>4.8.1</junit.version>
+		<junit.version>4.13.1</junit.version>
 	</properties>
 </project>