Update php.yml

Signed-off-by: 进恩影音工作室 <119514614+jinenge@users.noreply.github.com>

.github/workflows/php.yml

@@ -2,9 +2,9 @@ name: PHP Composer
 
 on:
   push:
-    branches: [ "main" ]
+    branches: [ "index.php" ]
   pull_request:
-    branches: [ "main" ]
+    branches: [ "index.php" ]
 
 permissions:
   contents: read