Correct code in SIM letters
CHANGELOG:
### Fixed
- [#411](https://gitlab.com/coopdevs/odoo-somconnexio/-/merge_requests/nn) Correct code showed in SIM letter to the corresponding CRM Lead Line ID.
Edited by Pelayo García
CHANGELOG:
### Fixed
- [#411](https://gitlab.com/coopdevs/odoo-somconnexio/-/merge_requests/nn) Correct code showed in SIM letter to the corresponding CRM Lead Line ID.