* account, hr_contract, hr_expense, point_of_sale, sale_margin,
website_sale_delivery, website_sale_wishlist
digits only works on Float fields, on Monetary fields it has no
effect:
- The column_type of a monetary field is always numeric
- It is not applied in `convert_to_column()` or `convert_to_cache()`
- It is not part of `description_attrs`, so it will not be included in
the output of `fields_get()`
closesodoo/odoo#35336
Signed-off-by: Martin Trigaux (mat) <mat@odoo.com>