Bump ruby/setup-ruby action from v1.190.0 to v1.268.0

Author: hsbt

.github/workflows/push_gem.yml

@@ -30,7 +30,7 @@ jobs:
       - uses: actions/checkout@1af3b93b6815bc44a9784bd300feb67ff0d1eeb3 # v6.0.0
 
       - name: Set up Ruby
-        uses: ruby/setup-ruby@a6e6f86333f0a2523ece813039b8b4be04560854 # v1.190.0
+        uses: ruby/setup-ruby@8aeb6ff8030dd539317f8e1769a044873b56ea71 # v1.268.0
         with:
           bundler-cache: true
           ruby-version: ruby