Cleanup ckan-sddi-dev container registry

[BWibo]

@MarijaKnezevic @ilchebedelovski @aleksandralazoroska

Hey all,

the ckan-sddi-dev registry has grown to over 600 images, probably 99.99% of them are unused.

I'll will introduce a workflow to clean this up. In the future, images of a corresponding PR will be deleted, if the PR is closed. Maybe with a retention time of a week or two.

To cleanup the current state, it would be easiest to delete the entire package once and re-cerate it for future images.

Can you please verify for yourself and partners (z.B. DKSR), that nobody is using an image in there and will miss it.
For currently active PRs, we will trigger a workflow run to create a fresh dev image from the latest commit of the PR. The PR history will be lost though, bit I think that probably not an isse.

I will inform you here, when I proceed with this. Please give me feedback soon, if this is fine for you.

[MarijaKnezevic]

Hey @BWibo
Thank you for taking care of it.
The DKSR is waiting for the new release in order to use the new image, but I will double-check and let you know if it is differently.