Feat: coop agreement new endpoint
CHANGELOG:
### Feat
- [#1108](https://git.coopdevs.org/coopdevs/som-connexio/odoo-somconnexio/-/merge_requests/1108)
Related card: https://trello.com/c/yWvkQMYV/1707-get-per-recuperar-literals-conveni-cooperatiu
CHANGELOG:
### Feat
- [#1108](https://git.coopdevs.org/coopdevs/som-connexio/odoo-somconnexio/-/merge_requests/1108)
Related card: https://trello.com/c/yWvkQMYV/1707-get-per-recuperar-literals-conveni-cooperatiu