Update ruby/setup-ruby action to v1.221.0 (#1815)

Signed-off-by: renovate[bot] <29139614+renovate[bot]@users.noreply.github.com>
Co-authored-by: renovate[bot] <29139614+renovate[bot]@users.noreply.github.com>

Author: renovate[bot]

.github/workflows/pr-build.yml

@@ -24,7 +24,7 @@ jobs:
           node-version: 18
 
       - name: Set up Ruby 3.2
-        uses: ruby/setup-ruby@28d088d34a0b0b7ba0823b7952c77004560a3a6f # v1.220.0
+        uses: ruby/setup-ruby@32110d4e311bd8996b2a82bf2a43b714ccc91777 # v1.221.0
         with:
           ruby-version: 3.2
 

.github/workflows/site-build.yml

@@ -24,7 +24,7 @@ jobs:
           node-version: 18
 
       - name: Set up Ruby 3.2
-        uses: ruby/setup-ruby@28d088d34a0b0b7ba0823b7952c77004560a3a6f # v1.220.0
+        uses: ruby/setup-ruby@32110d4e311bd8996b2a82bf2a43b714ccc91777 # v1.221.0
         with:
           ruby-version: 3.2