Link PACK OTRS tickets in provisioning
CHANGELOG:
### Added
- [#898](https://gitlab.com/coopdevs/odoo-somconnexio/-/merge_requests/898) Link PACK OTRS tickets after their creation during pack provisioning
Related card: https://trello.com/c/DFc1ppVx/1439-creaci%C3%B3-dels-tiquets-de-packs-a-otrs
Edited by Pelayo García