[FIX] Not testing Doodba 18.0 to be able to push image

[josep-tecnativa]

CC @Tecnativa TT51095

[ap-wtioit]

@josep-tecnativa on our CI we first build images with a ci-nnnn- prefix and push them, then test them, and if the tests pass we tag them as the new images. would this workflow also work with github / dockerhub?

the other thing i discovered that might be related to the issues. in docker compose for about a year (when we switched from docker-compose to docker compose) it was no longer possible for us to use local only images that had a / in the name. so we needed to push the images to our registry first to be able to test them. testing a local copy of our.regsitry/path/to/doodba:nn.0-onbuild was no longer possible, it needed an image in the registry first.

[josep-tecnativa]

I believe that workflow would indeed work with GitHub and Docker Hub. Once I finish updating to Doodba 18.0, I'll proceed with implementing it, as I see it as a very clean solution. Thank you!