feat(surfshark): update API endpoint and servers data

[eiqnepm]

I noticed that the static servers were missing for WireGuard, I'm not sure if any other locations are missing static servers, this is only for London

[qdm12]

We need the update process to be automated, so please update the update code in https://github.com/qdm12/gluetun/tree/master/internal/provider/surfshark/updater to get additional servers data. Alternatively, how did you get the new data? It also seems you removed 38K lines from servers.json, not sure why 🤔

[eiqnepm]

how did you get the new data?

Surfshark has an API to get lists of their servers and their connection info at https://api.surfshark.com/v4/server/clusters, it has the following paths, generic, double, static, and obfuscated.

you removed 38K lines from servers.json, not sure why 🤔

Must have been automatically formatted to be more readable because I use Prettier, the removals will just be whitespace.

[eiqnepm]

I have reverted the edit to the JSON file and instead updated the code to include the missing WireGuard servers.

[qdm12]

Awesome, I rebased your branch, did a few very minor changes and updated the servers.json using go run ./cmd/gluetun/main.go update -maintainer -providers "surfshark". I'll merge this 😉 Great job 💯