build: update actions/checkout action to v3

Author: renovate-bot

.github/workflows/dev-infra.yml

@@ -12,7 +12,7 @@ jobs:
   labels:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@ec3a7ce113134d7a93b817d10a8272cb61118579 # renovate: tag=v2.4.0
+      - uses: actions/checkout@a12a3943b4bdde767164f792f33f40b04645d846 # tag=v3.0.0
       - uses: angular/dev-infra/github-actions/commit-message-based-labels@104c49ad795097101ab3aa268a8e9af2cdf04a8d
         with:
           angular-robot-key: ${{ secrets.ANGULAR_ROBOT_PRIVATE_KEY }}