Bump junit-bom from 5.8.0 to 5.8.1

Bumps [junit-bom](https://github.com/junit-team/junit5) from 5.8.0 to 5.8.1.
- [Release notes](https://github.com/junit-team/junit5/releases)
- [Commits](junit-team/junit5@r5.8.0...r5.8.1)

---
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

@@ -243,7 +243,7 @@
     <versions-maven-plugin.version>2.8.1</versions-maven-plugin.version>
     <project.build.outputTimestamp>2021-06-01T19:19:12Z</project.build.outputTimestamp>
     <scmpublish.content>${project.reporting.outputDirectory}</scmpublish.content><!-- mono-module doesn't require site:stage for scm-publish -->
-    <junit5.version>5.8.0</junit5.version>
+    <junit5.version>5.8.1</junit5.version>
   </properties>
 
   <repositories>