fix: add repository to checkout step in ci.yml

.github/workflows/ci.yaml

@@ -10,6 +10,7 @@ jobs:
       - uses: actions/checkout@v4
         with:
           ref: ${{ github.event.pull_request.head.ref }}
+          repository: ${{ github.event.pull_request.head.repo.full_name }}
 
       # Run a couple of native Terraform checks
       - uses: hashicorp/setup-terraform@v3