Before this commit, milestone is still visible in project burger menu even if we disable the milestone feature and due to that while creating the milestone it was generating the traceback. So in this commit, add groups on milestone option on project burger menu. task-2918411 closes odoo/odoo#97629 X-original-commit: 1a7e2a298c2cbf076ce96dae85805f9dd77c7e0d Signed-off-by: Laurent Stukkens (ltu) <ltu@odoo.com>