fix: patch up id.key returning null

Author: mychidarko

src/Auth/User.php

@@ -97,7 +97,7 @@ public function __construct($data, $session = true)
      */
     public function id()
     {
-        return $this->data['id'] ?? null;
+        return $this->data[Config::get('id.key')] ?? null;
     }
 
     /**

src/Auth/UsesRoles.php

@@ -44,7 +44,7 @@ public function assign($role): bool
                 ->params([
                     $roleKey => json_encode($this->roles)
                 ])
-                ->where(Config::get('id.key'), $this->data['id'])
+                ->where(Config::get('id.key'), $this->data[Config::get('id.key')])
                 ->execute();
         } catch (\Throwable $th) {
             return false;
@@ -133,7 +133,7 @@ public function unassign($role): void
             ->params([
                 Config::get('roles.key') => json_encode($this->roles)
             ])
-            ->where(Config::get('id.key'), $this->data['id'])
+            ->where(Config::get('id.key'), $this->data[Config::get('id.key')])
             ->execute();
     }