A portable version is built in CI. This uses Nerixyz/c2-portable-updater as the updater, since the old one isn't open-source and requires .NET to be installed on the host.
Once the installer and portable are built and if the run was on a tag (⇒ release), then a release is drafted.
Description
Since https://github.com/Chatterino/chatterino2/pull/4408 seems kinda stuck and doing releases manually is tiring and error-prone, I'm adding the CI changes here. The following things are added/changed: