Bump junit-bom from 5.9.0 to 5.9.1

Bumps [junit-bom](https://github.com/junit-team/junit5) from 5.9.0 to 5.9.1.
- [Release notes](https://github.com/junit-team/junit5/releases)
- [Commits](junit-team/junit5@r5.9.0...r5.9.1)

---
updated-dependencies:
- dependency-name: org.junit:junit-bom
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

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

pom.xml

@@ -108,7 +108,7 @@
   <properties>
     <mojo.java.target>1.8</mojo.java.target>
     <maven.compiler.source>${mojo.java.target}</maven.compiler.source>
-    <junitBomVersion>5.9.0</junitBomVersion>
+    <junitBomVersion>5.9.1</junitBomVersion>
     <mavenVersion>3.2.5</mavenVersion>
     <wagonVersion>3.5.2</wagonVersion>
     <doxiaVersion>1.11.1</doxiaVersion>