Bump version 12.0.1.7.6

CHANGELOG:

## [12.0.1.7.6] - 2021-12-17
### Added
- [#695](https://gitlab.com/coopdevs/odoo-somconnexio/-/merge_requests/695) Show full address instead of just the street in CU `previous_contract_address` field
- [#691](https://gitlab.com/coopdevs/odoo-somconnexio/-/merge_requests/691) Show ADSL order-id in contract view and update its translation
- [#690](https://gitlab.com/coopdevs/odoo-somconnexio/-/merge_requests/690) Add field has active contract to partner
- [#689](https://gitlab.com/coopdevs/odoo-somconnexio/-/merge_requests/689) Show sponsees tab in coop candidates

### Fixed
- [#701](https://gitlab.com/coopdevs/odoo-somconnexio/-/merge_requests/701) Fix service_partner for contract holder change wizzard
- [#697](https://gitlab.com/coopdevs/odoo-somconnexio/-/merge_requests/697) Fix an attendance test which makes pipelines fail
- [#688](https://gitlab.com/coopdevs/odoo-somconnexio/-/merge_requests/688) Fix error when filtering contracts by storing their vodafone_id value.
- [#626](https://gitlab.com/coopdevs/odoo-somconnexio/-/merge_requests/626) Overload Payment Order method to empty parter in case of transfer account
- [#550](https://gitlab.com/coopdevs/odoo-somconnexio/-/merge_requests/550) Upgrade account_payment_order to 12.0.1.6.3

### Removed
- [#694](https://gitlab.com/coopdevs/odoo-somconnexio/-/merge_requests/694) Remove initial tests users and their partners

Related card: https://trello.com/c/CW9WiWUV/1092-release-120176

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