Remove latest/stable track from superset-k8s

Hello,

Please remove the latest/stable track from Charmhub | Deploy Superset Operator using Charmhub - The Open Operator Collection, making 6/stable the default track.

Hi, I don’t find ‘latest’ track for superset-k8s. Currently it has two tracks: 5 and 6. I have made 6 the default track. Please let me know if you have any further questions.