Set zend.max_allowed_stack_size=256k for PHP 8.3 test

Author: dirx

.github/workflows/test-macos.yml

@@ -46,6 +46,7 @@ jobs:
           php-version: ${{ matrix.php }}
           coverage: none
           extensions: ffi, pcntl
+          ini-values: "${{ matrix.php == '8.3' && 'zend.max_allowed_stack_size=256k' || '' }}"
 
       - name: Install dependencies
         uses: ramsey/composer-install@v2