Merge pull request #716 from ruby/dependabot/github_actions/step-security/harden-runner-2.17.0

Bump step-security/harden-runner from 2.16.0 to 2.17.0

Author: matzbot

.github/workflows/push_gem.yml

@@ -23,7 +23,7 @@ jobs:
 
     steps:
       - name: Harden Runner
-        uses: step-security/harden-runner@fa2e9d605c4eeb9fcad4c99c224cee0c6c7f3594 # v2.16.0
+        uses: step-security/harden-runner@f808768d1510423e83855289c910610ca9b43176 # v2.17.0
         with:
           egress-policy: audit