[FIX] repair : send email to author when included

When we include the author in the recipients of the quotation email of a repair order he doesn't receive the email.

Steps to reproduce the error :
1- create a repiar order
2- add the author in the list of recipients
3- send the email

The origin of the problem is that mail_notify_author=False , se we need to add it as True when we have the author in the recipients.

Similar old fix : https://github.com/odoo/odoo/commit/f49dbf595c870b682f36c11443c9cf1a9a027474



opw-3295744

closes odoo/odoo#126182

X-original-commit: f936def6
Signed-off-by: William Henrotin (whe) <whe@odoo.com>
Signed-off-by: Mahdi Cheikh Rouhou (macr) <macr@odoo.com>