Merge pull request #35 from codeplaysoftware/ci-fix

Hopefully fixes an issue with CI failing.

Author: scottstraughan

.github/workflows/jekyll.yml

@@ -27,7 +27,7 @@ jobs:
       - name: Checkout
         uses: actions/checkout@v4
       - name: Setup Ruby
-        uses: ruby/setup-ruby@8575951200e472d5f2d95c625da0c7bec8217c42 # v1.161.0
+        uses: ruby/setup-ruby@v1.221.0
         with:
           ruby-version: '3.1' # Not needed with a .ruby-version file
           bundler-cache: true # runs 'bundle install' and caches installed gems automatically