Bump actions/cache from 3.0.2 to 3.0.4 (jieter#848)

Bumps [actions/cache](https://github.com/actions/cache) from 3.0.2 to 3.0.4.
- [Release notes](https://github.com/actions/cache/releases)
- [Changelog](https://github.com/actions/cache/blob/main/RELEASES.md)
- [Commits](actions/cache@v3.0.2...v3.0.4)

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

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

Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

Author: dependabot[bot]

.github/workflows/ci.yml

@@ -51,7 +51,7 @@ jobs:
         with:
           python-version: ${{ matrix.python-version }}
       - uses: actions/checkout@v3
-      - uses: actions/[email protected].2
+      - uses: actions/[email protected].4
         with:
           path: ~/.cache/pip
           key: ${{ runner.os }}-pip-${{ hashFiles('**/requirements.txt') }}