Update ruby/setup-ruby action to v1.266.0 (#1924)

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: 22.21.0
 
       - name: Set up Ruby 3.2
-        uses: ruby/setup-ruby@ab177d40ee5483edb974554986f56b33477e21d0 # v1.265.0
+        uses: ruby/setup-ruby@4ff6f3611a42bc75eee1e5138240eb1613f48c8f # v1.266.0
         with:
           ruby-version: 3.2
 

.github/workflows/site-build.yml

@@ -24,7 +24,7 @@ jobs:
           node-version: 22.21.0
 
       - name: Set up Ruby 3.2
-        uses: ruby/setup-ruby@ab177d40ee5483edb974554986f56b33477e21d0 # v1.265.0
+        uses: ruby/setup-ruby@4ff6f3611a42bc75eee1e5138240eb1613f48c8f # v1.266.0
         with:
           ruby-version: 3.2