make htmlSC available as GitHub Action

[gernotstarke]

for all those static-websites built with Jekyll, Hugo or the like -> a detailed check with HSC would really help.

We just migrated one of the arc42 sites from Netlify (back) to GitHub - and got numerous errors due to a lack of automated testing :-)

[ascheman]

Yes, great idea, thanks (had the same thought as I am using more and more GH actions lately.)
We could easily realize that based on the CLI (#318) implementation 😬 soon after releasing it (which is planned for next week).

[gernotstarke]

sounds awesome. Having a cli app would surely make hSC much more usable by non-Java people...

[ascheman]

Further hints by my favorite GenAI

[ascheman]

I need your help again, @gernotstarke. It seems the pre-requisite for a GH action is to generate and publish a Docker image (which is nice anyway for other purposes). With my permissions I could create an image for hsc under the aim42 organisation on the GitHub Container Registry (GHCR) privately. However, I cannot make it public. This requires administrator privileges.

By my understanding you have to perform the following steps:

1. Go to the organization settings.
2. Navigate to "Member privileges".
3. Enable "Package creation" for public packages.