Merge pull request #190 from SukiCZ/upgrade-action/cache-v4

Upgrade action/cache to v4. Fixes: #189

action.yml

@@ -12,7 +12,7 @@ runs:
     shell: bash
   - run: python -m pip freeze --local
     shell: bash
-  - uses: actions/cache@v3
+  - uses: actions/cache@v4
     with:
       path: ~/.cache/pre-commit
       key: pre-commit-3|${{ env.pythonLocation }}|${{ hashFiles('.pre-commit-config.yaml') }}