A required boolean accepts two values, True and False, however the SSF
and the web-client assume False to be equal to NULL and treat them
interchangeably.
In the SSF, we verify that a required field is filled by checking that
its value is different from False, however False is a valid value for a
boolean, this means that setting a required boolean to False would never
work in the SSF.
This commit overcomes this issue by simply skipping the check for fields
of type boolean.
closesodoo/odoo#34729
Signed-off-by: Xavier Morel (xmo) <xmo@odoo.com>