An employee could not confirm an allocation request of a type that doesn't need validation
Steps to reproduce:
1. Connect as admin
2. Install and open the Time Off app
3. Create a time off type in Configuration->Time Off Types with
- Requires allocation: Yes
- Approval: No validation needed
4. Connect as demo
5. Open the Time Off app and create an allocation request of the type created just before
Solution:
Add a condition before raising the error that checks the allocation validation type
OPW-2683477
closesodoo/odoo#81143
X-original-commit: d985b96ba77f45edee8001d1063f644c99a15ffc
Signed-off-by: Guillaume Merlin (megu) <megu@odoo.com>