Create new track for MLflow bundle

[michalhucko]

Hi can we please have a new track 2.1 for mlflow bundle (Charmhub | Deploy Mlflow using Charmhub - The Open Operator Collection).

Thanks Michal

[ca-scribner (Andrew Scribner)]

to be clear, the entry in charmhub is just mlflow (the one that is linked)

[roadmr (Daniel Manrique)]

This is done.

• Daniel