feat(contract): add quitting sharing data logic
CHANGELOG:
### Added
- [#1072](https://git.coopdevs.org/coopdevs/som-connexio/odoo-somconnexio/-/merge_requests/1072) When a mobile contract changes its tariff or is being terminated, in case it used to share data with others, we need to manage their tariffs accordingly.
Related card: https://trello.com/c/O4cME3W4/1686-canvis-de-tarifa-autom%C3%A0tic-m%C3%B2bil