Bump version 12.0.1.3.0

CHANGELOG:

## [12.0.1.3.0] - 2021-06-07
### Added
- [#512](https://gitlab.com/coopdevs/odoo-somconnexio/-/merge_requests/512) Add code field to PriceList
- [#424](https://gitlab.com/coopdevs/odoo-somconnexio/-/merge_requests/424) Contract Compensation Wizard which creates an activity with the amount or a One Shot in OC

### Changed
- [#507](https://gitlab.com/coopdevs/odoo-somconnexio/-/merge_requests/507) Account Payment Line Create wizard queued and splitted in groups
- [#493](https://gitlab.com/coopdevs/odoo-somconnexio/-/merge_requests/493) Low priority for invoice creation and validation

### Removed
- [#508](https://gitlab.com/coopdevs/odoo-somconnexio/-/merge_requests/508) Remove La Borda product attribute values

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