errors when building projects with multiple requirements

[edublancas]

adding the suffix in the wrong place

the feature that allows a single project to have multiple docker images is adding the suffix to the tag, instead of the name. Furthermore, it's adding default to the default tag, but this should not happen. For example, it'll generate:

project-name:latest-default
project-name:latest-another

but it should be:

project-name:latest
project-name-another:latest

argo spec does not take multiple docker images into account

when exporting to argo, all the tasks use the same docker image, I haven't tested with AWS Batch or Airflow, but I suspect the same.

correct image building

Also, I'm unsure if the logic to build the docker images is correctly implemented. I tried running the example and then checked the "plot" image:

docker run multiple_requirements_project:latest-plot-ploomber pip freeze | grep seaborn

and seaborn isn't there

[edublancas]

Note: "adding the suffix in the wrong place" has been fixed