CDB3-5271 Створити окремі ендпоїнти для документів до сутності Cancellation в джобері

• GET /api/jobber/announcements/{anons_type:(jas|jal)}/{obj_id}/cancellations/{cancellation_id}/documents/{doc_id}/download

• GET /api/jobber/announcements/{anons_type:(jas|jal)}/{obj_id}/cancellations/{cancellation_id}/documents/{doc_id}

• GET /api/jobber/announcements/{anons_type:(jas|jal)}/{obj_id}/cancellations/{cancellation_id}/documents

• GET /api/jobber/redemption/{redemption_type:(jrs|jrl)}/{obj_id}/cancellations/{cancellation_id}/documents/{doc_id}/download

• GET /api/jobber/redemption/{redemption_type:(jrs|jrl)}/{obj_id}/cancellations/{cancellation_id}/documents/{doc_id}

• GET /api/jobber/redemption/{redemption_type:(jrs|jrl)}/{obj_id}/cancellations/{cancellation_id}/documents