Publish Docker images on PR

[jdcmarques]

Description

• Allows for workflow to publish docker images tagged with ``pr-XXX`
• Add comment on PR with image published
• Trigger workflow when a PR is merged / closed and curl docker hub to delete old image.

Feel free to close this if not needed, but it makes it easier to test out temporary versions of the project

[VibeNL]

Great idea. it is just not working yet. I myself am not that skilled at the github actions so if you could make it work, that would be great :).

[jdcmarques]

Now sure how GH Workflow interacts with secrets if opened from fork 😅
It would have to come from a branch in your repo, not a fork, I think

https://securitylab.github.com/research/github-actions-preventing-pwn-requests/

[VibeNL]

@jdcmarques , I think i got it working on my own branch. Thanks for the initial implementation 👍