change to default

.github/workflows/compress-images.yml

@@ -1,6 +1,6 @@
 name: Compress Images
 on:
-  push:
+  pull_request:
     # Run Image Actions when JPG, JPEG, PNG or WebP files are added or changed.
     # See https://help.github.com/en/actions/automating-your-workflow-with-github-actions/workflow-syntax-for-github-actions#onpushpull_requestpaths for reference.
     paths: