Reorder workflow triggers to prioritize pull requests over push events

Author: the78mole

.github/workflows/docker-build.yml

@@ -1,14 +1,12 @@
 name: Build and Push Docker Images
 
 on:
-  push:
+  pull_request:
     branches:
       - main
+  push:
     tags:
       - 'v*'
-  pull_request:
-    branches:
-      - main
 
 env:
   REGISTRY: ghcr.io