Bump actions/cache from 2.1.7 to 3.0.1

Bumps [actions/cache](https://github.com/actions/cache) from 2.1.7 to 3.0.1.
- [Release notes](https://github.com/actions/cache/releases)
- [Changelog](https://github.com/actions/cache/blob/main/RELEASES.md)
- [Commits](actions/cache@v2.1.7...v3.0.1)

---
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/ci.yml

@@ -72,7 +72,7 @@ jobs:
         echo "::set-output name=dir::$(pip cache dir)"    # - name: Cache
 
     - name: Cache PyPI
-      uses: actions/cache@v2.1.7
+      uses: actions/cache@v3.0.1
       with:
         key: pip-ci-${{ runner.os }}-${{ matrix.py }}
         path: ${{ steps.pip-cache.outputs.dir }}

.github/workflows/lint.yml

@@ -32,7 +32,7 @@ jobs:
           echo "::set-output name=dir::$(pip cache dir)"    # - name: Cache
 
       - name: Cache PyPI
-        uses: actions/cache@v2.1.7
+        uses: actions/cache@v3.0.1
         with:
           key: pip-lint
           path: ${{ steps.pip-cache.outputs.dir }}