Update php.yml

Author: javadev

.github/workflows/php.yml

@@ -15,7 +15,7 @@ jobs:
     runs-on: ubuntu-latest
 
     steps:
-    - uses: actions/checkout@v3
+    - uses: actions/checkout@v4
 
     - name: Validate composer.json and composer.lock
       run: composer validate --strict