Bump ruby/setup-ruby from 1.287.0 to 1.288.0 (#63)

Bumps [ruby/setup-ruby](https://github.com/ruby/setup-ruby) from 1.287.0 to 1.288.0.
- [Release notes](https://github.com/ruby/setup-ruby/releases)
- [Changelog](https://github.com/ruby/setup-ruby/blob/master/release.rb)
- [Commits](ruby/setup-ruby@8d27f39...09a7688)

---
updated-dependencies:
- dependency-name: ruby/setup-ruby
  dependency-version: 1.288.0
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

Author: dependabot[bot]

.github/workflows/jekyll.yml

@@ -35,7 +35,7 @@ jobs:
       - name: Checkout
         uses: actions/checkout@v6
       - name: Setup Ruby
-        uses: ruby/setup-ruby@8d27f39a5e7ad39aebbcbd1324f7af020229645c # v1.287.0
+        uses: ruby/setup-ruby@09a7688d3b55cf0e976497ff046b70949eeaccfd # v1.288.0
         with:
           bundler-cache: true
           cache-version: 0