The user could make the mistake to put a large number in the `Guests`
input in the POS order and this is not validated, even an number more large
for the capacity of an integer, raising an uncontrolled error:
`psycopg2.errors.NumericValueOutOfRange: integer out of range`
this commit is adding a validation error in order to limit the number of `Guests`
with the maximum number for an integer: 2**31 - 1
closesodoo/odoo#106817
X-original-commit: 0ad071e5b132b8f24b8fccf1624ccf97778fe27b
Signed-off-by: Trinh Jacky (trj) <trj@odoo.com>