Merge pull request #225 from ruby/dependabot/github_actions/step-security/harden-runner-2.13.0

Bump step-security/harden-runner from 2.12.2 to 2.13.0

Author: hsbt

.github/workflows/push_gem.yml

@@ -23,7 +23,7 @@ jobs:
 
     steps:
       - name: Harden Runner
-        uses: step-security/harden-runner@6c439dc8bdf85cadbbce9ed30d1c7b959517bc49 # v2.12.2
+        uses: step-security/harden-runner@ec9f2d5744a09debf3a187a3f4f675c53b671911 # v2.13.0
         with:
           egress-policy: audit