Increase the minerfund IFP reward
Bump the IFP reward starting on November 15, 2023.
This is done to maintain enough earnings for keeping the eCash project
moving forward despite the price getting lower during the bear market.
Reviewers: #bitcoin_abc, Mengerian, PiRK
Reviewed By: #bitcoin_abc, Mengerian, PiRK
Subscribers: majcosta, tobias_ruck, PiRK
Differential Revision: https://reviews.bitcoinabc.org/D14066