♻️ [CI] Added a common action to prepare m2 repo for caching

Signed-off-by: Alberto Codutti <[email protected]>

.github/actions/prepareMavenRepoForCache/action.yaml

@@ -5,6 +5,7 @@ runs:
   using: "composite"
   steps:
     - name: Extract built Kapua artifacts # This splits the built Kapua artifact of this run from the cached repository of external dependencies for caching
+      if: ${{ steps.cache-maven-kapua-artifacts.outputs.cache-hit != 'true' }}
       run: |
         mkdir --parents ~/.m2/kapua-repository/org/eclipse/
         mv ~/.m2/repository/org/eclipse/kapua ~/.m2/kapua-repository/org/eclipse/kapua