Update passwords.rst

Fix the wrong type for the method `upgradePassword` according to `PasswordUpgraderInterface`.

Author: Synxgz

security/passwords.rst

@@ -506,7 +506,7 @@ the user provider::
     {
         // ...
 
-        public function upgradePassword(UserInterface $user, string $newHashedPassword): void
+        public function upgradePassword(PasswordAuthenticatedUserInterface $user, string $newHashedPassword): void
         {
             // set the new hashed password on the User object
             $user->setPassword($newHashedPassword);