build(deps): bump actions/cache from 4.1.2 to 4.2.0

Bumps [actions/cache](https://github.com/actions/cache) from 4.1.2 to 4.2.0.
- [Release notes](https://github.com/actions/cache/releases)
- [Changelog](https://github.com/actions/cache/blob/main/RELEASES.md)
- [Commits](actions/cache@6849a64...1bd1e32)

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

Signed-off-by: dependabot[bot] <[email protected]>

.github/workflows/jekyll.yml

@@ -19,7 +19,7 @@ jobs:
       - uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683 # v4.2.2
 
       # Use GitHub Actions' cache to shorten build times and decrease load on servers
-      - uses: actions/cache@6849a6489940f00c2f30c0fb92c6274307ccb58a # v4.1.2
+      - uses: actions/cache@1bd1e32a3bdc45362d1e726936510720a7c30a57 # v4.2.0
         with:
           path: vendor/bundle
           key: ${{ runner.os }}-gems-${{ hashFiles('**/Gemfile') }}