Bump junit from 4.13 to 4.13.1 in /maven

Bumps [junit](https://github.com/junit-team/junit4) from 4.13 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@r4.13...r4.13.1)

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

Author: dependabot[bot]

maven/pom.xml

@@ -32,7 +32,7 @@
     <maven-plugin-api.version>3.0</maven-plugin-api.version>
     <maven-plugin-plugin.version>3.6.0</maven-plugin-plugin.version>
 
-    <junit.version>4.13</junit.version>
+    <junit.version>4.13.1</junit.version>
     <mockito.version>3.1.0</mockito.version>
 
     <fest-assert.version>1.4</fest-assert.version>