Merge pull request #99 from rubygems/dependabot/github_actions/step-security/harden-runner-2.13.3

Bump step-security/harden-runner from 2.13.2 to 2.13.3

Author: hsbt

.github/workflows/push_gem.yml

@@ -20,7 +20,7 @@ jobs:
     steps:
       # Set up
       - name: Harden Runner
-        uses: step-security/harden-runner@95d9a5deda9de15063e7595e9719c11c38c90ae2 # v2.13.2
+        uses: step-security/harden-runner@df199fb7be9f65074067a9eb93f12bb4c5547cf2 # v2.13.3
         with:
           egress-policy: audit