Merge pull request #2975 from k8s-infra-cherrypick-robot/cherry-pick-2973-to-release-0.18

[release-0.18] 🌱 Fix PR verify action

Author: k8s-ci-robot

Diff for: .github/workflows/verify.yml

@@ -9,9 +9,9 @@ jobs:
     runs-on: ubuntu-latest
 
     steps:
-    - uses: actions/checkout@692973e3d937129bcbf40652eb9f2f61becf3332 # tag=v4.1.7
+      - uses: actions/checkout@eef61447b9ff4aafe5dcd4e0bbf5d482be7e7871 # tag=v4.2.1
 
-    - name: Check if PR title is valid
+      - name: Check if PR title is valid
         env:
           PR_TITLE: ${{ github.event.pull_request.title }}
         run: |