Update the YAML file for GitHub Actions

Author: matsuo

.github/workflows/php.yml

@@ -1,10 +1,11 @@
-name: build
+name: Test
 
 on:
   push:
     branches:
       - "*"
   pull_request:
+    types: [opened, reopened]
     branches: [ 'master', 'main' ]
   schedule:
     - cron:  '0 9 15 * *'