Merge pull request #356 from ruby/dependabot/github_actions/step-security/harden-runner-2.12.1

Bump step-security/harden-runner from 2.12.0 to 2.12.1

Author: hsbt

.github/workflows/push_gem.yml

@@ -27,7 +27,7 @@ jobs:
 
     steps:
       - name: Harden Runner
-        uses: step-security/harden-runner@0634a2670c59f64b4a01f0f96f84700a4088b9f0 # v2.12.0
+        uses: step-security/harden-runner@002fdce3c6a235733a90a27c80493a3241e56863 # v2.12.1
         with:
           egress-policy: audit