With the addition of args and improved depends-on features, the CLI is staying behind.

As a user I would like to modify these fields in the manifest through my CLI. A few missing features are:

• The full setup of depends-on, we currently only support a name, but it can contain environment and args.
• The ability to set a default for an arg, we currently only support the name but no default value.
• I think the idea of doing pixi task alias is not the best way to do it as its more then an alias by now. So I would like to be able to create an alias through pixi add task_a --depends-on task_b
• Set inputs and outputs