Update workflow.yml

Author: khoahuynhdev

.github/workflows/workflow.yml

@@ -5,8 +5,6 @@ name: CI
 # Controls when the action will run. Triggers the workflow on push or pull request
 # events but only for the master branch
 on:
-  push:
-    branches: [ main ]
   pull_request:
     branches: [ main ]