MailjetConfigurationAccessCheck should use proper dependency injection

Still applies in combination with 🐛 MailjetConfigurationAccessCheck triggers on all routes Active .

Because of this access check service, we are getting redirect loop and can't access the site as anonymous user.

When I remove this servcie

  mailjet.access_check:
    class: Drupal\mailjet\Access\MailjetConfigurationAccessCheck
    arguments: ['@config.factory', '@messenger']
    tags:
      - { name: access_check, applies_to: '_mailjet_access_check' }

and use

requirements:
    _custom_access: '\Drupal\mailjet\Access\MailjetConfigurationAccessCheck::access'

instead of

  requirements:
    _mailjet_access_check: 'TRUE'

in routing, then it fixes the issue.