[REL] Bump somconnexio version 12.0.2.9.0
CHANGELOG:
## [12.0.2.9.0] - 2024-10-23
### Added
- [#1268](https://git.coopdevs.org/coopdevs/som-connexio/odoo-somconnexio/-/merge_requests/1268) Add first_month_promotion field in CoopAgreement model & tag to create new CRMLead
### Fixed
- [#1280](https://git.coopdevs.org/coopdevs/som-connexio/odoo-somconnexio/-/merge_requests/1280) Revert removing forced sharing bond contract computation when breaking packs
### Changed
- [#1270](https://git.coopdevs.org/coopdevs/som-connexio/odoo-somconnexio/-/merge_requests/1270) Change mobile_linked_with_new_fiber template message (from next month to today)
- [#1193](https://git.coopdevs.org/coopdevs/som-connexio/odoo/odoo-somconnexio/-/merge_requests/1193) Add available_operations or contracts with T-Conserva product associated
- [#1121](https://git.coopdevs.org/coopdevs/som-connexio/odoo-somconnexio/-/merge_requests/1121) Use keep_phone_number in change address wizard and set it True at CRMLead creation when portability with a product with landline.
### Removed
- [#1256](https://git.coopdevs.org/coopdevs/som-connexio/odoo-somconnexio/-/merge_requests/1256) Move code out to create marginalized_groups_somconnexio module
Related card: https://trello.com/c/XXXXXXXX/xjksdjflsdfksldfsdfs