Feature request: update PrivateVPN servers using website instead of zip file

[Silversurfer79]

EDIT by qdm12:

• Currently updater uses the Privatevpn openvpn Zip file which has 79 servers (10 not resolving to anything)
• It would be nicer to fetch and parse their website at https://privatevpn.com/why-privatevpn/server-locations to extract the 82 servers
• Some servers in the zip file are not present in the website tables

[github-actions]

@qdm12 is more or less the only maintainer of this project and works on it in his free time.
Please:

• do not ask for updates, be patient
• 👍 the issue to show your support instead of commenting
  @qdm12 usually checks issues at least once a week, if this is a new urgent bug,
  revert to an older tagged container image