[ENGOPS-142] Match up mondrianschemaworkbench plugins version.
Mondrianschemaworkbench plugins project should match up with Mondrian versioning. Version propertization allows the release builds to automatically map any release version of this artifact with the matching Mondrian version.
This is follow-up work for the versioning scheme used for the 5.0.0 Pentaho Suite release.
xref commit  https://github.com/pentaho/pentaho-mondrianschemaworkbench-plugins/commit/5f1d3fef2ea5a39ae7feb27ae9f66f436212ddb0