[IMP] base: Change default My company website

Purpose
========
Change www.yourcompany.com default link for the 'Website'
field of the res.company and res.partner to 'www.example.com'

closes odoo/odoo#40727

Taskid: 2129147
Signed-off-by: Yannick Tivisse (yti) <yti@odoo.com>