build(deps): bump ruby/setup-ruby from 1.217.0 to 1.218.0

Bumps [ruby/setup-ruby](https://github.com/ruby/setup-ruby) from 1.217.0 to 1.218.0.
- [Release notes](https://github.com/ruby/setup-ruby/releases)
- [Changelog](https://github.com/ruby/setup-ruby/blob/master/release.rb)
- [Commits](ruby/setup-ruby@8711a86...d781c1b)

---
updated-dependencies:
- dependency-name: ruby/setup-ruby
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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

Author: dependabot[bot]

.github/workflows/jekyll.yml

@@ -16,7 +16,7 @@ jobs:
       - uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683 # v4.2.2
 
       - name: Setup Ruby
-        uses: ruby/setup-ruby@8711a86ab6f9aa72890da4123b2ef7283b6b22b6 # v1.217.0
+        uses: ruby/setup-ruby@d781c1b4ed31764801bfae177617bb0446f5ef8d # v1.218.0
         with:
           ruby-version: '3.2' # Not needed with a .ruby-version file
           bundler-cache: true # runs 'bundle install' and caches installed gems automatically