Testing cache in github actions

.github/workflows/testing.yml

@@ -42,6 +42,7 @@ jobs:
           key: venv-${{ runner.os }}-${{ env.pythonLocation }}-${{ hashFiles('**/tests/scripts/fetch_test_data.sh') }}
 
       - name: Install dependencies
+        if: ${{ steps.cache_deps.outputs.cache-hit != 'true' }}
         run: |
           python -m pip install --upgrade pip
           pip install .