Bump actions/cache from 3.2.1 to 3.2.4 (#747)

Bumps [actions/cache](https://github.com/actions/cache) from 3.2.1 to 3.2.4.
- [Release notes](https://github.com/actions/cache/releases)
- [Changelog](https://github.com/actions/cache/blob/main/RELEASES.md)
- [Commits](actions/cache@v3.2.1...v3.2.4)

---
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>

.github/workflows/pitest.yml

@@ -25,7 +25,7 @@ jobs:
           architecture: ${{ matrix.architecture }}
           distribution: 'temurin'
 
-      - uses: actions/[email protected].1
+      - uses: actions/[email protected].4
         with:
           path: ~/.m2/repository
           key: ${{ runner.os }}-maven-${{ hashFiles('**/pom.xml') }}