Bump actions/cache from 4.0.0 to 4.0.2

Bumps [actions/cache](https://github.com/actions/cache) from 4.0.0 to 4.0.2.
- [Release notes](https://github.com/actions/cache/releases)
- [Changelog](https://github.com/actions/cache/blob/main/RELEASES.md)
- [Commits](actions/cache@v4.0.0...v4.0.2)

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

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

.github/workflows/docs.yml

@@ -36,7 +36,7 @@ jobs:
         with:
           python-version: 3.*
       - run: echo "cache_id=$(date --utc '+%V')" >> $GITHUB_ENV
-      - uses: actions/cache@v4
+      - uses: actions/cache@v4.0.2
         with:
           key: mkdocs-material-${{ env.cache_id }}
           path: .cache

.github/workflows/tests.yml

@@ -86,7 +86,7 @@ jobs:
           print("::set-output name=result::{}".format(result))
 
       - name: Restore pre-commit cache
-        uses: actions/[email protected].0
+        uses: actions/[email protected].2
         if: matrix.session == 'pre-commit'
         with:
           path: ~/.cache/pre-commit