Bump actions/cache from 3 to 4 (#552)

Bumps [actions/cache](https://github.com/actions/cache) from 3 to 4.
- [Release notes](https://github.com/actions/cache/releases)
- [Changelog](https://github.com/actions/cache/blob/main/RELEASES.md)
- [Commits](actions/cache@v3...v4)

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

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

.github/workflows/snapshot.yml

@@ -27,7 +27,7 @@ jobs:
       - uses: olafurpg/setup-scala@v14
         with:
           java-version: adopt@1.11
-      - uses: actions/cache@v3
+      - uses: actions/cache@v4
         with:
           path: ~/.cache
           key: ${{ runner.os }}-snapshot-${{ hashFiles('**/*.sbt') }}

.github/workflows/test.yml

@@ -43,7 +43,7 @@ jobs:
         with:
           distribution: 'zulu'
           java-version: ${{ matrix.version }}
-      - uses: actions/cache@v3
+      - uses: actions/cache@v4
         with:
           path: ~/.cache
           key: ${{ runner.os }}-jdk${{ matrix.version }}-${{ hashFiles('**/*.sbt') }}