Use the right checkout

.github/workflows/lint.yml

@@ -12,6 +12,11 @@ jobs:
       # Checks out a copy of your repository on the ubuntu-latest machine
       - name: Checkout code
         uses: actions/checkout@v4
+        with:
+          # Make sure the actual branch is checked out when running on PR
+          ref: ${{ github.event.pull_request.head.sha }}
+          # Full git history needed to get proper list of changed files
+          fetch-depth: 0
 
       # Runs the Super-Linter action
       - name: Run Super-Linter