Bump junit from 4.8.2 to 4.13.1

Bumps [junit](https://github.com/junit-team/junit4) from 4.8.2 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](https://github.com/junit-team/junit4/compare/r4.8.2...r4.13.1)

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

Signed-off-by: dependabot[bot] <support@github.com>
diff --git a/pom.xml b/pom.xml
index 7e217c4..bef6ff6 100644
--- a/pom.xml
+++ b/pom.xml
@@ -55,7 +55,7 @@
         <felix-config.version>1.2.8</felix-config.version>
         <felix-http.version>2.2.0</felix-http.version>
         <jetty-plugin.version>7.5.4.v20111024</jetty-plugin.version>
-        <junit.version>4.8.2</junit.version>
+        <junit.version>4.13.1</junit.version>
         <karaf.version>2.2.8</karaf.version>
         <log4j.version>1.2.14</log4j.version>
         <maven-bundle.version>2.3.7</maven-bundle.version>