Set packaging version to 21.3 to fix Invalid version error

The jboss.container.maven.35.bash module cause an Invalid version error
with python-packaging to version >= 22, for further details see
pypa/packaging#407

.github/workflows/ci.yml

@@ -18,7 +18,7 @@ jobs:
       - name: Install prerequisites
         run: >
           sudo apt-get install gcc libkrb5-dev pass &&
-          sudo pip install docker==5.0.3 docker-squash cekit odcs[client]
+          sudo pip install docker==5.0.3 docker-squash cekit odcs[client] packaging==21.3
 
       - name: Checkout the repo
         uses: actions/checkout@v2