Bump actions/cache from 2 to 3.0.11

Bumps [actions/cache](https://github.com/actions/cache) from 2 to 3.0.11.
- [Release notes](https://github.com/actions/cache/releases)
- [Changelog](https://github.com/actions/cache/blob/main/RELEASES.md)
- [Commits](actions/cache@v2...v3.0.11)

---
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/sphinx.yml

@@ -27,7 +27,7 @@ jobs:
       # https://docs.github.com/en/actions/guides/building-and-testing-python#caching-dependencies
       # ^-- How to set up caching for pip on Ubuntu
       - name: Cache pip
-        uses: actions/cache@v2
+        uses: actions/cache@v3.0.11
         with:
           path: ~/.cache/pip
           key: ${{ runner.os }}-pip-${{ hashFiles('requirements.txt') }}

.github/workflows/tests.yml

@@ -71,7 +71,7 @@ jobs:
           print("::set-output name=result::{}".format(result))
 
       - name: Restore pre-commit cache
-        uses: actions/[email protected].4
+        uses: actions/[email protected].11
         if: matrix.session == 'pre-commit'
         with:
           path: ~/.cache/pre-commit