mail_notifier: Integrate new turris smtp server password
On Turris OS 4.0,, notifier
will use password generated by turris/sentinel/certgen>
Blocked by:
- turris/sentinel/certgen#3 (closed)
- turris/sentinel/cert-api#5 (closed)
- turris/sentinel/mailpass#1
- turris/sentinel/checker#5
Edited by Vojtech Myslivec