Bump version 12.0.2.6.4
CHANGELOG:
## [12.0.2.6.4] - 2024-07-09
### Changed
- [#1243](https://git.coopdevs.org/coopdevs/som-connexio/odoo/odoo-somconnexio/-/merge_requests/1245) Change xoln project selector as model
Related card: https://trello.com/c/49ZGJVVp/1931-release-odoo-120270
Edited by Gerard Funosas