tailor update-build-files uses :: now

Author: huonw

.github/workflows/pants.yaml

@@ -50,7 +50,7 @@ jobs:
       run: |
         pants --version
     - name: Check BUILD files
-      run: pants tailor --check update-build-files --check
+      run: pants tailor --check update-build-files --check ::
     - name: Lint and typecheck
       run: | 
         pants lint check ::