Bump junit from 4.12 to 4.13.1 in /tools/maven-bundle-plugin

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](https://github.com/junit-team/junit4/compare/r4.12...r4.13.1)

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

Signed-off-by: dependabot[bot] <support@github.com>
diff --git a/tools/maven-bundle-plugin/pom.xml b/tools/maven-bundle-plugin/pom.xml
index bf2f519..5b9da3f 100644
--- a/tools/maven-bundle-plugin/pom.xml
+++ b/tools/maven-bundle-plugin/pom.xml
@@ -260,7 +260,7 @@
   <dependency>
       <groupId>junit</groupId>
       <artifactId>junit</artifactId>
-      <version>4.12</version>
+      <version>4.13.1</version>
       <scope>test</scope>
   </dependency>
  </dependencies>