Replace Gluon activation time with the actual block height

Summary: Gluon upgrade activated on may 2022, let's clean up the activation tests and set activation based on block height rather than mtp.

Test Plan:

ninja all check-upgrade-activated-extended

Run IBD on mainnet and testnet

Reviewers: #bitcoin_abc, PiRK, sdulfari

Reviewed By: #bitcoin_abc, PiRK, sdulfari

Subscribers: sdulfari

Differential Revision: https://reviews.bitcoinabc.org/D12031