chore(deps): update ruby/setup-ruby action to v1.312.0

Author: renovate[bot]

.github/workflows/jekyll.yml

@@ -33,7 +33,7 @@ jobs:
       - name: Checkout
         uses: actions/checkout@v6
       - name: Setup Ruby
-        uses: ruby/setup-ruby@v1.310.0
+        uses: ruby/setup-ruby@v1.312.0
         with:
           bundler-cache: true # runs 'bundle install' and caches installed gems automatically
           cache-version: 0 # Increment this number if you need to re-download cached gems