fix(vikon): use correct token introspect endpoint for update system

Original vikon_core security.php validates tokens via:
  POST db-nica.ru/oauth2/resource/token/introspect
  Body: client_id=542&access_token=XXX

Our code was incorrectly using:
  GET auth.db-nica.ru/api/profile_applicant/check_access_token
  Header: Authorization: Bearer XXX

This was the WRONG endpoint — the profile check is for abitur forms,
not for the update system.

app/Containers/VikonIntegration/Providers/VikonServiceProvider.php

@@ -28,6 +28,7 @@ class VikonServiceProvider extends ServiceProvider
 
         $this->app->singleton(ValidateTokenTask::class, fn ($app) => new ValidateTokenTask(
             http: $app->make(HttpTask::class),
+            clientId: config('vikon.client_id'),
         ));
 
         $this->app->singleton(RefreshTokenTask::class, fn ($app) => new RefreshTokenTask(