Publish container image to GHCR

[onedr0p]

Fixes: #94

Description

Why do we need it, and what problem does it solve?

Why do we need it in the patch release (if we do)?

Checklist

• The code is covered by unit tests.
• e2e tests passed.
• Documentation updated according to the changes.
• Changes were tested in the Kubernetes cluster manually.

Changelog entries

 type: fix | feature | chore
 summary: <ONE-LINE of what effectively changes for a user>
 impact: <what to expect for users, possibly MULTI-LINE>, required if impact_level is high ↓
 impact_level: default | high | low

[onedr0p]

Any update here?

[onedr0p]

/ping @vladimirGuryanov

[onedr0p]

I'm not sure what's holding this up, it should be relatively straight forward to merge and then set the package to public if it's not already.

[vporoshok]

@vladimirGuryanov can we merge this? As I see, GHCR is free for public repos:

GitHub Packages usage is free for public packages. In addition, data transferred in from any source is free.

https://docs.github.com/en/billing/concepts/product-billing/github-packages