Bump junit from 4.13 to 4.13.1 in /porcupine-bulkhead-jee8

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] <[email protected]>

Author: dependabot[bot]

porcupine-bulkhead-jee8/pom.xml

@@ -23,7 +23,7 @@
     <kotlin.version>1.2.51</kotlin.version>
     <jgiven.version>0.15.3</jgiven.version>
     <slf4j.version>1.7.30</slf4j.version>
-    <junit4.version>4.13</junit4.version>
+    <junit4.version>4.13.1</junit4.version>
     <javaee.version>8.0</javaee.version>
     <vavr.version>0.10.2</vavr.version>
     <h2.version>1.4.196</h2.version>