How do you accomplish equipotential bonding for an above ground polyester/PVC pool if the filter pump provided is not compatible?
The pump is a red herring
The pump has nothing to do with the equipotential bonding requirement.  So looking at the pump to help you is dead-end.
Your bonding effort should ignore the pump altogether.
Equipotential bonding is generally done to panels.
Equipotential bonding is just another phrase for the normal “grounding electrodes” that your house already has.  The requirement is that the pool have a separate set of grounding electrodes all its own, and those attach to the house’s grounding electrode system.
So that goes back to your main panel, or if you have a pool subpanel that is connected 4-wire (separate neutral and ground) to the main panel, then it goes there.
The purpose is to keep the earth around your pool from floating at a voltage above safety ground, as this would break/defeat the GFCI devices that protect your family.