Tech: fix le job de vérification des liens externes des procédures lorsqu'un autre attribut est en erreur

[colinux]

Vu sur delayed job et https://demarches-simplifiees.sentry.io/issues/4604375721/ sur des vieilles démarches qui ont d'autres champs en erreur.

J'en profite pour :

• refactorer
• rajouter les tests
• passer le job sur sidekiq

[what-the-diff]

PR Summary

• Improved Error Checking in Procedure Object
  • The update improves upon the existing logic for detecting and handling errors when working with our workflow 'procedure' object, making it more efficient and reliable.
• Consolidation of Update Operations
  • Rather than updating attributes individually, they're now being assigned in a more streamlined and direct way, reducing code complexity.
• New Error Checking Method
  • A new private method (check_for_error) has been added to handle error verification and provide clearer error messages.
• Adoption of Sidekiq for Job Queueing
  • A brand new class (ProcedureExternalURLCheckJob) was created which uses 'Sidekiq' - a more modern, efficient tool for managing background jobs.
• Introduction of Comprehensive Testing
  • A separate file with tests for the newly created class has been added. It comprehensively checks various scenarios for valid and invalid links in the 'Procedure' object, ensuring the new updates work as expected.