Merge pull request #102 from ruby/dependabot/github_actions/step-security/harden-runner-2.13.3

Bump step-security/harden-runner from 2.13.1 to 2.13.3

Author: hsbt

.github/workflows/push_gem.yml

@@ -27,7 +27,7 @@ jobs:
 
     steps:
       - name: Harden Runner
-        uses: step-security/harden-runner@f4a75cfd619ee5ce8d5b864b0d183aff3c69b55a # v2.13.1
+        uses: step-security/harden-runner@df199fb7be9f65074067a9eb93f12bb4c5547cf2 # v2.13.3
         with:
           egress-policy: audit