ci: fix test matrix to cover all PHP and Doctrine ORM combinations

The CI workflow now correctly tests all combinations of:
- PHP versions (8.1, 8.2, 8.3, 8.4)
- Doctrine ORM versions (2.14, 3.0, latest)

This creates 12 test combinations instead of separate jobs for PHP and Doctrine.
Code coverage reporting remains exclusive to PHP 8.4 builds.

Author: martin-georgiev

.github/workflows/ci.yml

@@ -17,23 +17,19 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
+        php: ['8.1', '8.2', '8.3', '8.4']
+        doctrine-orm: ['2.14', '3.0', 'latest']
         include:
-          - php: '8.1'
-          - php: '8.2'
-          - php: '8.3'
           - php: '8.4'
             calculate-code-coverage: true
-          - doctrine-orm: '2.14'
-          - doctrine-orm: '3.0'
-          - doctrine-orm: 'latest'
 
     steps:
     - uses: actions/checkout@v4
 
     - name: Set up PHP with PECL extension
       uses: shivammathur/setup-php@v2
       with:
-        php-version: ${{ matrix.php || '8.4' }}
+        php-version: ${{ matrix.php }}
         coverage: xdebug
         extensions: ctype, json, mbstring
         tools: composer