Bump actions/cache from 2 to 3

Bumps [actions/cache](https://github.com/actions/cache) from 2 to 3.
- [Release notes](https://github.com/actions/cache/releases)
- [Changelog](https://github.com/actions/cache/blob/main/RELEASES.md)
- [Commits](actions/cache@v2...v3)

---
updated-dependencies:
- dependency-name: actions/cache
  dependency-type: direct:production
  update-type: version-update:semver-major
...

Signed-off-by: dependabot[bot] <support@github.com>

.github/workflows/check.yaml

@@ -37,15 +37,15 @@ jobs:
         run: |
           echo "::set-output name=dir::$(pip cache dir)"
       - name: Persistent Github pip cache
-        uses: actions/cache@v2
+        uses: actions/cache@v3
         with:
           path: ${{ steps.pip-cache.outputs.dir }}
           key: pip-${{ runner.os }}-${{ matrix.python-version }}-${{ hashFiles('pyproject.toml', 'setup.cfg', 'setup.py', 'Makefile') }}
           restore-keys: |
             pip-${{ runner.os }}-${{ matrix.python-version }}-
             pip-${{ runner.os }}-
       - name: Persistent Github venv cache
-        uses: actions/cache@v2
+        uses: actions/cache@v3
         with:
           path: .venv/
           key: venv-${{ runner.os }}-${{ steps.setup-python.outputs.python-version }}-${{ hashFiles('pyproject.toml', 'setup.cfg', 'setup.py', 'Makefile') }}