Satellite 6.10+ needs a new way of reseting pulp

[evgeni]

6.10 uses Pulp 3, which has a different database layout.

probably something like this, instead of all the mongodb stuff, will work:

• drop pulpcore db
• create pulpcore db
• migrate pulpcore db

[evgeni]

see https://docs.pulpproject.org/pulpcore/workflows/reclaim-disk-space.html