Bump actions/cache from 3 to 4

Bumps [actions/cache](https://github.com/actions/cache) from 3 to 4.
- [Release notes](https://github.com/actions/cache/releases)
- [Changelog](https://github.com/actions/cache/blob/main/RELEASES.md)
- [Commits](actions/cache@v3...v4)

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

Signed-off-by: dependabot[bot] <[email protected]>

.github/workflows/tox.yml

@@ -57,13 +57,13 @@ jobs:
           python-version: ${{ matrix.python_version }}
 
       - name: Pre-commit cache
-        uses: actions/cache@v3
+        uses: actions/cache@v4
         with:
           path: ~/.cache/pre-commit
           key: ${{ matrix.name }}-pre-commit-${{ hashFiles('setup.cfg', 'tox.ini', 'pyproject.toml', '.pre-commit-config.yaml') }}
 
       - name: Pip cache
-        uses: actions/cache@v3
+        uses: actions/cache@v4
         with:
           path: ~/.cache/pip
           key: ${{ matrix.name }}-pip-${{ hashFiles('setup.cfg', 'tox.ini', 'pyproject.toml', '.pre-commit-config.yaml') }}