removed On Push from workflow

.github/workflows/pr_copied_files.yaml

@@ -1,19 +1,13 @@
 name: CI Copied Files Check
 
 on:
-  push:
-    branches:
-      - check_pr_copies
   pull_request:
     branches:
       - main
 
 jobs:
-  # ------------------------------------------------------------------------------------------------------------------------------------------------
-  # Event `pull_request`: Compare the last commit of the main branch or last remote commit of the PR branch -> to the current commit of a PR branch.
-  # ------------------------------------------------------------------------------------------------------------------------------------------------
   changed_files:
-    runs-on: ubuntu-latest  # windows-latest || macos-latest
+    runs-on: ubuntu-latest
     name: Test changed-files
     outputs:
       check_result: ${{ steps.step1.outputs.result }}