build(deps): bump nix-community/cache-nix-action

Bumps [nix-community/cache-nix-action](https://github.com/nix-community/cache-nix-action) from 4.0.3 to 5.0.1.
- [Release notes](https://github.com/nix-community/cache-nix-action/releases)
- [Changelog](https://github.com/nix-community/cache-nix-action/blob/main/RELEASES.md)
- [Commits](https://github.com/nix-community/cache-nix-action/compare/v4.0.3...v5.0.1)

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

Signed-off-by: dependabot[bot] <support@github.com>

.github/actions/setup-nix/action.yaml

@@ -18,7 +18,7 @@ runs:
       with:
         nix_version: '2.13.6'
     - name: Restore and cache Nix store
-      uses: nix-community/cache-nix-action@v4.0.3
+      uses: nix-community/cache-nix-action@v5.0.1
       with:
         key: cache-nix-${{ runner.os }}-id-${{ inputs.cache-id }}-${{ hashFiles('nix/**/*.nix', '.github/actions/setup-nix/*') }}
         restore-keys: |