Build succeeded in Jenkins: Maven » Maven TLP » maven-assembly-plugin » master #31

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See 
https://ci-builds.apache.org/job/Maven/job/maven-box/job/maven-assembly-plugin/job/master/31/

Changes:

* Bump commons-compress from 1.19 to 1.20
* fix ci: convert bsh to groovy (try#2)

All tests passed