Update ruby/setup-ruby action to v1.255.0

Author: renovate[bot]

.github/workflows/push_gem.yml

@@ -24,7 +24,7 @@ jobs:
 
       - uses: actions/checkout@0ad4b8fadaa221de15dcec353f45205ec38ea70b # v4.1.4
       - name: Set up Ruby
-        uses: ruby/setup-ruby@cacc9f1c0b3f4eb8a16a6bb0ed10897b43b9de49 # v1.176.0
+        uses: ruby/setup-ruby@829114fc20da43a41d27359103ec7a63020954d4 # v1.255.0
         with:
           bundler-cache: true
           ruby-version: ruby