Build(deps): Bump actions/cache from 1 to 4

Bumps [actions/cache](https://github.com/actions/cache) from 1 to 4.
- [Release notes](https://github.com/actions/cache/releases)
- [Changelog](https://github.com/actions/cache/blob/main/RELEASES.md)
- [Commits](https://github.com/actions/cache/compare/v1...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>

.github/workflows/floccus.yml

@@ -48,7 +48,7 @@ jobs:
         run: npm i -g npm@"${{ matrix.npm-version }}"
 
       - name: Cache node modules
-        uses: actions/cache@v1
+        uses: actions/cache@v4
         env:
           cache-name: cache-node-modules
         with: