Bump actions/cache from 3.3.3 to 4.0.0 (#29)

Bumps [actions/cache](https://github.com/actions/cache) from 3.3.3 to 4.0.0.
- [Release notes](https://github.com/actions/cache/releases)
- [Changelog](https://github.com/actions/cache/blob/main/RELEASES.md)
- [Commits](actions/cache@v3.3.3...v4.0.0)

---
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/ci.yml

@@ -40,7 +40,7 @@ jobs:
       - name: Freeze
         run: cabal freeze
       - name: Cache
-        uses: actions/cache@v3.3.3
+        uses: actions/cache@v4.0.0
         with:
           path: ${{ steps.setup-haskell.outputs.cabal-store }}
           key: ${{ runner.os }}-${{ matrix.ghc }}-${{ hashFiles('cabal.project.freeze') }}