Undo modification of cache key

Author: henchaves

.github/workflows/build-python.yml

@@ -128,7 +128,7 @@ jobs:
         if: ${{ github.event_name == 'pull_request' || inputs.use-cache }}
         with:
           path: ~/.giskard
-          key: ${{ matrix.os }}-${{ matrix.python-version }}-python-test-resources-v2-${{ hashFiles('tests/fixtures/**/*py')}}
+          key: ${{ matrix.os }}-${{ matrix.python-version }}-python-test-resources-${{ hashFiles('tests/fixtures/**/*py')}}
           restore-keys: ${{ matrix.os }}-${{ matrix.python-version }}-python-giskard-test-resources
 
       - name: Check again new disk space