fix(ContractTariffChangeWizard): break pack if new mobile product is not bonified
CHANGELOG:
### Fixed
- [#947](https://git.coopdevs.org/coopdevs/som-connexio/odoo-somconnexio/-/merge_requests/947): Break pack if new mobile product is not bonified with contract tariff change wizard.
Related card: https://trello.com/c/5U5nDHoM/1497-canvi-tarifa-desvincular-contractes