ci: update PHP test workflow to use PHPUnit and remove deprecated tests.yml

Author: egyjs

.github/workflows/php-tests.yml

@@ -13,7 +13,7 @@ jobs:
     strategy:
       matrix:
         php-version: ['8.0', '8.1', '8.2', '8.3', '8.4']
-    
+        
     steps:
       - uses: actions/checkout@v4
 
@@ -25,5 +25,17 @@ jobs:
       - name: Install dependencies
         run: composer install --no-interaction
 
-      - name: Run tests
-        run: composer test
+      - name: Test with PHPUnit
+        run: |
+          ./vendor/bin/phpunit --coverage-clover=coverage.xml --log-junit=junit.xml
+      
+      - name: Upload coverage to Codecov
+        uses: codecov/codecov-action@v5
+        with:
+          token: ${{ secrets.CODECOV_TOKEN }}
+      
+      - name: Upload test results to Codecov
+        if: ${{ !cancelled() }}
+        uses: codecov/test-results-action@v1
+        with:
+          token: ${{ secrets.CODECOV_TOKEN }}