host alias for the agent container

[joeltraber]

Is your feature request related to a problem? Please describe

Since Jenkins runs in the same environment as Gitlab, routing via the public IP makes no sense. I would like to resolve the Gitlab URL with an internal IP. The host alias for the controller works perfectly for this. Unfortunately, the agent is missing this option for some reason

Describe the solution you'd like

Provide the same option for the agent as for the controller (see below).

jenkins:
controller:
hostAliases:
- ip: x.x.x.x
hostnames:
- git.x.com

Describe alternatives you've considered

Also nice would to set host aliases globally for any container within the helm chart.

Additional context

No response