Bump ruby/setup-ruby from 1.120.0 to 1.254.0

Bumps [ruby/setup-ruby](https://github.com/ruby/setup-ruby) from 1.120.0 to 1.254.0.
- [Release notes](https://github.com/ruby/setup-ruby/releases)
- [Changelog](https://github.com/ruby/setup-ruby/blob/master/release.rb)
- [Commits](ruby/setup-ruby@ece8276...2a7b300)

---
updated-dependencies:
- dependency-name: ruby/setup-ruby
  dependency-version: 1.254.0
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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

Author: dependabot[bot]

.github/workflows/jekyll.yml

@@ -37,7 +37,7 @@ jobs:
     - name: Install node modules
       run: npm install
     - name: Set up Ruby
-      uses: ruby/setup-ruby@ece82769428359c077b5a5eaff268902a303c101
+      uses: ruby/setup-ruby@2a7b30092b0caf9c046252510f9273b4875f3db9
       with:
         bundler-cache: true # runs 'bundle install' and caches installed gems automatically
     - name: Set up Pages