Update dependencies - NethServer 8.9

[DavidePrincipi]

Automated updates of NS8 dependencies. Link related pull requests to this task for tracking.

Task proposal discussion: https://mattermost.nethesis.it/nethserver/pl/hbsgnueo4irkp8xz9qpz6xgkhc

[DavidePrincipi]

Released https://github.com/NethServer/ns8-mail/releases/tag/1.7.11

[DavidePrincipi]

In Testing NethServer/ns8-loki#60 Loki 1.4.5-dev.1

[DavidePrincipi]

In Testing Metrics 1.2.6-dev.1

[DavidePrincipi]

Released https://github.com/NethServer/ns8-dnsmasq/releases/tag/1.3.2