[Migration] Convert program bundles to dataset bundles

[leilenah]

Overview

program bundles were deprecated a while back. A program bundle is a bundle with bundle_type program. However, there are some lingering program bundles in the prod database. We should run a migration to convert these bundles to dataset bundles.

Tasks

• Run a migration to convert bundles with program bundle_type to have a dataset bundle_type.
• Remove references to the ProgramBundle class from the codalab-worksheets repo
• Remove defensive checks from get_bundle_state_details() helper function
  • Context: Return empty state_details for deprecated bundle types. #4229

Related Issues

#4228