chore: update GitHub Actions workflow to include PHPStan for type checking and improve dependency installation

Author: bbsnly

.github/workflows/php.yml

@@ -20,7 +20,8 @@ jobs:
     name: PHP ${{ matrix.php-versions }} Test
 
     steps:
-    - uses: actions/checkout@v4
+    - name: Checkout code
+      uses: actions/checkout@v4
 
     - name: Setup PHP
       uses: shivammathur/setup-php@v2
@@ -43,7 +44,14 @@ jobs:
           ${{ runner.os }}-php-
 
     - name: Install dependencies
-      run: composer install --no-interaction --prefer-dist --no-progress
+      uses: nick-fields/retry@v3
+      with:
+          timeout_minutes: 5
+          max_attempts: 5
+          command: composer update --prefer-stable --prefer-dist --no-interaction --no-progress
+
+    - name: Execute type checking
+      run: vendor/bin/phpstan --configuration="phpstan.neon.dist"
 
     - name: Run test suite
       run: vendor/bin/phpunit --coverage-clover=coverage.xml --log-junit junit.xml

composer.json

@@ -38,13 +38,9 @@
         }
     },
     "require-dev": {
+        "phpstan/phpstan": "^2.0",
         "phpunit/phpunit": "^10.0"
     },
-    "scripts": {
-        "test": [
-            "vendor/bin/phpunit"
-        ]
-    },
     "config": {
         "optimize-autoloader": true,
         "platform": {

phpstan.neon.dist

@@ -0,0 +1,4 @@
+parameters:
+    level: 1
+    paths:
+        - src