[FIX] base_gengo: private key password field

Before this commit, the gengo private password was displayed in
plaintext in edit mode. This is due to text fields being rendered as
`textarea` in edit mode, which does not support the "password" type.

This commit fixes the issue by turning this field to `Char`, so that
it is rendered as `input` with type "password" in edit mode.

The loss of multi-line from `textarea` is not a big deal, because
gengo passwords are not that long.

Task-ID 1892058

closes odoo/odoo#32725

Signed-off-by: Alexandre Kühn (aku) <aku@odoo.com>

addons/base_gengo/models/res_company.py

@@ -7,7 +7,7 @@ from odoo import fields, models
 class res_company(models.Model):
     _inherit = "res.company"
 
-    gengo_private_key = fields.Text(string="Gengo Private Key", copy=False, groups="base.group_system")
+    gengo_private_key = fields.Char(string="Gengo Private Key", copy=False, groups="base.group_system")
     gengo_public_key = fields.Text(string="Gengo Public Key", copy=False, groups="base.group_user")
     gengo_comment = fields.Text(string="Comments", groups="base.group_user",
       help="This comment will be automatically be enclosed in each an every request sent to Gengo")

addons/base_gengo/models/res_config_settings.py

@@ -7,7 +7,7 @@ from odoo import api, models, fields
 class ResConfigSettings(models.TransientModel):
     _inherit = 'res.config.settings'
 
-    gengo_private_key = fields.Text(string="Gengo Private Key", related="company_id.gengo_private_key", readonly=False)
+    gengo_private_key = fields.Char(string="Gengo Private Key", related="company_id.gengo_private_key", readonly=False)
     gengo_public_key = fields.Text(string="Gengo Public Key", related="company_id.gengo_public_key", readonly=False)
     gengo_comment = fields.Text(string="Comments", related="company_id.gengo_comment",
       help="This comment will be automatically be enclosed in each an every request sent to Gengo")