Bump ruby/setup-ruby in the github-actions group across 1 directory (#369)

Bumps the github-actions group with 1 update in the / directory: [ruby/setup-ruby](https://github.com/ruby/setup-ruby).


Updates `ruby/setup-ruby` from 1.248.0 to 1.253.0
- [Release notes](https://github.com/ruby/setup-ruby/releases)
- [Changelog](https://github.com/ruby/setup-ruby/blob/master/release.rb)
- [Commits](ruby/setup-ruby@a9bfc2e...bb6434c)

---
updated-dependencies:
- dependency-name: ruby/setup-ruby
  dependency-version: 1.253.0
  dependency-type: direct:production
  update-type: version-update:semver-minor
  dependency-group: github-actions
...

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

Author: dependabot[bot]

.github/workflows/jekyll.yml

@@ -34,7 +34,7 @@ jobs:
       - name: Checkout
         uses: actions/checkout@v4
       - name: Setup Ruby
-        uses: ruby/setup-ruby@a9bfc2ecf3dd40734a9418f89a7e9d484c32b990 # v1.248.0
+        uses: ruby/setup-ruby@bb6434c747fa7022e12fa1cae2a0951fcffcff26 # v1.253.0
         with:
           ruby-version: '3.4.1' # Not needed with a .ruby-version file
           bundler-cache: true # runs 'bundle install' and caches installed gems automatically