Add repo checkout for failing gh cli (#56096)

Author: sunbrye

.github/workflows/first-responder-v2-prs-collect.yml

@@ -23,6 +23,9 @@ jobs:
     runs-on: ubuntu-latest
 
     steps:
+      - name: Checkout repository
+        uses: actions/checkout@v3
+
       - name: Check if the event originated from a team member
         uses: actions/github-script@e69ef5462fd455e02edcaf4dd7708eda96b9eda0
         id: check-membership