Merge pull request #5 from OJFord/dependabot/github_actions/gorelease…

…r/goreleaser-action-4

Bump goreleaser/goreleaser-action from 3 to 4

Fix error tfplugindocs err `invalid character 'c'`

cf. hashicorp/terraform-plugin-docs#127

Update import-gpg action, roll key

Add `mullvad_account` data & resource

Make mullvad_{wireguard_port -> port_forward} more generic

Add `mullvad_city` data source

Fix for auth & structural changes in Mullvad API

Incidentally fixes #1 (API now does return the created port).

Add `mullvad_relay` data source

docs: Generate with tfplugindocs

Release for terraform registry

https://www.terraform.io/docs/registry/providers/publishing.html#using-goreleaser-locally