Fix missing returns in repositories and handlers

Found by new, strictier PHPStan. Fixed issues:

- Method Crm\PaymentsModule\Repository\PaymentGatewaysRepository::update()
  should return bool but return statement is missing.
- Method Crm\ScenariosModule\Repository\TriggersRepository::delete()
  should return bool but return statement is missing.
- Method Crm\ScenariosModule\Repository\ElementsRepository::delete()
  should return bool but return statement is missing.
- Method Crm\UsersModule\Repository\UsersRepository::update()
  should return bool but return statement is missing.

- Method Crm\SurveyHeroModule\Api\SurveyHeroWebhookHandler::params()
  should return array<Crm\ApiModule\Params\ParamInterface> but return
  statement is missing.
- Method Crm\StripeModule\Api\SetupIntentHandler::params()
  should return array<Crm\ApiModule\Params\ParamInterface> but return
  statement is missing.

remp/crm#2007

src/api/SetupIntentHandler.php

@@ -19,6 +19,7 @@ public function __construct(StripeRecurrent $stripe)
 
     public function params()
     {
+        return [];
     }
 
     public function handle(ApiAuthorizationInterface $authorization)