Ability to update Gluetun server list

[JordanDiefenbach]

Is your feature request related to a problem?

Yes, the server list for my provider AirVPN is outdated and since Gluetun runs with nonpersistent storage I cannot use the update environment variable to update the server.json list.

Describe the solution you'd like

The ability to update the server.json list

Describe alternatives you've considered

I've considered not using Gluetun and just using Wireguard with my Truecharts apps

Additional context

This is the page for the Gluetun server list update feature. https://github.com/qdm12/gluetun-wiki/blob/main/setup/servers.md#update-the-vpn-servers-list

I've read and agree with the following

• I've checked all open and closed issues and my request is not there.
• I've checked all open and closed pull requests and my request is not there.

[PrivatePuffin]

@stavros-k I think we should:
A. add emptyDir storage
B. Enable fetching for those lists always

[truecharts-admin]

This issue has been automatically marked as stale because it has not had recent activity. It will be closed in two weeks if no further activity occurs. Thank you for your contributions.

[truecharts-admin]

This issue has been automatically closed due to inactivity. Please re-open if this still requires investigation.