add official Portieris helm charts to some publicly accessible repo

[hamburgerbun]

Is your feature request related to a problem? Describe the feature request.
It's simple enough to use helm or terraform's helm plugin to install a chart straight from the github url or a tarball. However, AWS Quickstart helm plugin doesn't really support this, it seems to expect a helm chart set in a repo.

Describe the solution that you'd like
I can upload the v0.10.2 tarball up to onto some github pages repo of my own but i think it'd be nice to have "OFFICIAL" builds posted up somewhere in a helm repo, whether it's a publicly-accessible-but-privately-managed repository or something, and then referenced in artifacthub.io

Describe alternatives you've considered
N/A

Additional context
N/A