update phpstan for multi version

Author: tanhongit

.github/workflows/phpstan.yml

@@ -4,15 +4,21 @@ on: [push, pull_request]
 
 jobs:
   phpstan:
-    runs-on: ubuntu-latest
+    runs-on: ${{ matrix.os }}
+    name: PHPStan - P${{ matrix.php }}
+
+    strategy:
+      matrix:
+        os: [ ubuntu-latest ]
+        php: [ '8.1', '8.2', '8.3' ]
 
     steps:
       - uses: actions/checkout@v4
 
       - name: Setup PHP
         uses: shivammathur/setup-php@2.26.0
         with:
-          php-version: '8.1'
+          php-version: ${{ matrix.php }}
 
       - name: Checkout code
         uses: actions/checkout@v4