*: microsoft_outlook, website_twitter

Steps to reproduce:
- install the google_gmail, microsoft_outlook and website_twitter
modules
- go to Settings > General settings > Discuss > External email servers
- for the twitter module go to Settings > Website > Features > Twitter
roller
- the client secret fields are visible

This commit changes the fields types into 'password'.

opw-2936506

closes odoo/odoo#97306

Signed-off-by: Anh Thao PHAM <pta@odoo.com>