Add docs profile to release train test

Author: ryanjbaxter

.github/actions/release-train-test/action.yml

@@ -10,4 +10,4 @@ runs:
         fi
     - name: Test Release
       shell: bash
-      run:  ./mvnw --batch-mode --settings release-train-settings.xml clean verify --activate-profiles releaseTrain
+      run:  ./mvnw --batch-mode --settings release-train-settings.xml clean verify --activate-profiles releaseTrain -Pdocs