Feature request: Ability to forward multiple ports with PIA

[Bush-cat]

What's the feature 🧐

I'm using the forwarded port already but I need a second port for a second application, at the moment, there is only one port added by gluetun

Extra information and references

No response

[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