minor(make:factory): default false for embedded and `targetDocument…

…` mappings (#602)

When an ODM reference is configured, the 'embedded' key may not be
present at all in the association mapping. The missing key should be
treated as implicit false. Without this the make:factory command will
crash.

src/Bundle/Maker/Factory/ODMDefaultPropertiesGuesser.php

@@ -30,8 +30,7 @@ public function __invoke(SymfonyStyle $io, MakeFactoryData $makeFactoryData, Mak
         }
 
         foreach ($metadata->associationMappings as $item) {
-            /** @phpstan-ignore-next-line */
-            if (!$item['embedded'] || !$item['targetDocument']) {
+            if (!($item['embedded'] ?? false) || !($item['targetDocument'] ?? false)) {
                 // foundry does not support ODM references
                 continue;
             }