Fixes phpstan errors

Author: skroczek

src/AuthorizationServer.php

@@ -71,7 +71,7 @@ class AuthorizationServer implements EmitterAwareInterface
     private $scopeRepository;
 
     /**
-     * @var ClaimRepositoryInterface
+     * @var null|ClaimRepositoryInterface
      */
     private $claimRepository;
 

src/Grant/AbstractGrant.php

@@ -65,7 +65,7 @@ abstract class AbstractGrant implements GrantTypeInterface
     protected $scopeRepository;
 
     /**
-     * @var ClaimRepositoryInterface
+     * @var null|ClaimRepositoryInterface
      */
     protected $claimRepository;
 

src/Repositories/AccessTokenRepositoryInterface.php

@@ -25,8 +25,8 @@ interface AccessTokenRepositoryInterface extends RepositoryInterface
      *
      * @param ClientEntityInterface  $clientEntity
      * @param ScopeEntityInterface[] $scopes
-     * @param array                  $claims
-     * @param ClaimEntityInterface[] $userIdentifier
+     * @param string|null            $userIdentifier
+     * @param ClaimEntityInterface[] $claims
      *
      * @return AccessTokenEntityInterface
      */

tests/Stubs/ClaimEntity.php

@@ -30,4 +30,4 @@ public function jsonSerialize()
     {
         return ['name' => $this->name, 'value' => $this->value];
     }
-}
+}