Update vodafone related fields in contract

CHANGELOG:

### FIXED
- [#730](https://gitlab.com/coopdevs/odoo-somconnexio/-/merge_requests/730) Update vodafone related fields in contract

Related card: https://trello.com/c/rUoIs9ap/1140-vodafone-id-es-veu-diferent-a-la-vista-de-contracte-que-al-submodel-del-contracte

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