Update .github/workflows/files-changed.yml

Author: silverwind

.github/workflows/files-changed.yml

@@ -36,7 +36,7 @@ jobs:
         id: changes
         with:
           # needed for `act_runner exec`, is ignored for pull_request event
-          base: HEAD
+          # base: HEAD
           filters: |
             backend:
               - "**/*.go"