Build succeeded in Jenkins: Maven » Maven TLP » maven-war-plugin » master #20

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See 
https://ci-builds.apache.org/job/Maven/job/maven-box/job/maven-war-plugin/job/master/20/

Changes:

* Bump junit from 4.13 to 4.13.1
* fix: update Groovy to 2.4.21

All tests passed