[ci] use annotations when attributes are not supported

Author: jrushlow

tests/Maker/MakeEntityTest.php

@@ -31,14 +31,24 @@ private function createMakeEntityTest(bool $withDatabase = true): MakerTestDetai
         return $this->createMakerTest()
             ->preRun(function (MakerTestRunner $runner) use ($withDatabase) {
                 $config = $runner->readYaml('config/packages/doctrine.yaml');
+                $appMapping = $config['doctrine']['orm']['mappings']['App'] ?? [];
 
-                if (isset($config['doctrine']['orm']['mappings']['App']['type']) && $this->useAttributes($runner)) {
-                    // use attributes
+                /* @legacy Refactor when annotations are no longer supported. */
+                if (isset($appMapping['type']) && $this->useAttributes($runner)) {
+                    // We want to use attributes by default in tests if they're supported.
                     $runner->replaceInFile(
                         'config/packages/doctrine.yaml',
                         'type: annotation',
                         'type: attribute'
                     );
+                } elseif (!empty($appMapping) && !$this->useAttributes($runner)) {
+                    // Flex assumes attributes are supported based on package versions.
+                    // When PHP <8.0, we have to use annotations.
+                    $runner->modifyYamlFile('config/packages/doctrine.yaml', function (array $data) {
+                        $data['doctrine']['orm']['mappings']['App']['type'] = 'annotation';
+
+                        return $data;
+                    });
                 }
 
                 if ($withDatabase) {