Package bundles are listed in ascending order

1. `kubectl get packagebundle -A`

Expected: The newest bundle should be at the top sorted in descending order.
Actual: The newest bundle is at the bottom, sorted in ascending order.

Start by reproducing the ordering with `kubectl get packagebundle -A`, then trace the packagebundle list output to the relevant Go entry point. Done means the newest bundle appears at the top in descending order.

Written by the indexing model from the issue text.