Feature/update 2023 prf bus max rebate field

[courtneymyers]

Related Issues:

• CSBAPP-275

Main Changes:

Update name of field used in a brand new 2023 PRF submission for storing each bus's max rebate amount

Steps To Test:

1. Ask the BAP to change an existing 2023 FRF submission's status to "Accepted"
2. Create a new 2023 PRF submission.
3. Ensure the injected data for each bus's max rebate amount is correct (bus_buses.[index]._bus_maxRebate).

TODO:

• Continue to update queries on the BAP team provides a means to get the data we still need for a new PRF submission.