build(deps): bump ruby/setup-ruby from 1.257.0 to 1.279.0

Bumps [ruby/setup-ruby](https://github.com/ruby/setup-ruby) from 1.257.0 to 1.279.0.
- [Release notes](https://github.com/ruby/setup-ruby/releases)
- [Changelog](https://github.com/ruby/setup-ruby/blob/master/release.rb)
- [Commits](ruby/setup-ruby@4451173...b90be12)

---
updated-dependencies:
- dependency-name: ruby/setup-ruby
  dependency-version: 1.279.0
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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

Author: dependabot[bot]

.github/workflows/ci.yml

@@ -13,7 +13,7 @@ jobs:
       - name: Checkout
         uses: actions/checkout@v5
       - name: Setup Ruby
-        uses: ruby/setup-ruby@44511735964dcb71245e7e55f72539531f7bc0eb
+        uses: ruby/setup-ruby@b90be12699fdfcbee4440c2bba85f6f460446bb0
         with:
           ruby-version: '3.1' # Not needed with a .ruby-version file
           bundler-cache: true # runs 'bundle install' and caches installed gems automatically

.github/workflows/pages.yml

@@ -33,7 +33,7 @@ jobs:
       - name: Checkout
         uses: actions/checkout@v5
       - name: Setup Ruby
-        uses: ruby/setup-ruby@44511735964dcb71245e7e55f72539531f7bc0eb
+        uses: ruby/setup-ruby@b90be12699fdfcbee4440c2bba85f6f460446bb0
         with:
           ruby-version: '3.1' # Not needed with a .ruby-version file
           bundler-cache: true # runs 'bundle install' and caches installed gems automatically