Only test modified roles

closes OSPRH-11820

Signed-off-by: Fabricio Aguiar <[email protected]>

.github/workflows/molecule.yaml

@@ -55,6 +55,17 @@ jobs:
     - uses: actions/setup-python@v5
       with:
         python-version: '3.9'
+    - name: Check whether the role is modified
+      id: check_role
+      run: |
+        if [[ $(git diff --name-only roles | grep ${{ matrix.tested_role }}) ]]; then
+          echo "modified=true" >> $GITHUB_OUTPUT
+        else
+          gh run cancel ${{ github.run_id }}
+          gh run watch ${{ github.run_id }}
+        fi
+      env:
+        GH_TOKEN: ${{ github.token }}
     - name: Install ansible
       run: pip install ansible
     - name: Install collections