[FOSOAuthServerBundle] Remove incompatible version

[Prometee]

Q	A
Branch?	1.9 only
Bug fix?	yes
New feature?	no
BC breaks?	no
Deprecations?	no
Related tickets	none
License	MIT

If you try to install Sylius ~1.9.0 with Symfony ^4.4 you will get this type of error :

[TypeError]                                                                                                                                                                                                                          
  Argument 1 passed to FOS\OAuthServerBundle\Entity\ClientManager::__construct() must be an instance of Doctrine\Common\Persistence\ObjectManager, instance of EntityManager_9a5be93 given, called in var/cache/test/ContainerXDiFD64/getSylius_OauthServer_ClientManagerService.php on line 14

This error occurred because all deprecated Doctrine Persistence API have been replaced in Sylius 1.9 making FOSOAuthServerBundle ^1.6 incompatible with Sylius ~1.9.0

[pamil]

Thank you, Francis! 🥇