Merge pull request #168 from ruby/dependabot/github_actions/step-security/harden-runner-2.12.0

Bump step-security/harden-runner from 2.11.1 to 2.12.0

Author: hsbt

.github/workflows/push_gem.yml

@@ -23,7 +23,7 @@ jobs:
 
     steps:
       - name: Harden Runner
-        uses: step-security/harden-runner@c6295a65d1254861815972266d5933fd6e532bdf # v2.11.1
+        uses: step-security/harden-runner@0634a2670c59f64b4a01f0f96f84700a4088b9f0 # v2.12.0
         with:
           egress-policy: audit