change(consensus): Update mainnet and testnet checkpoints on 2022-12-01 #5754
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Motivation
We need to update the checkpoints to speed up full syncs on the main branch.
This is based on the "settled network upgrade" consensus rule.
Designs
Follow the instructions for updating the checkpoints from
zcashd
.Review
Updating the checkpoints is urgent because it might fix full sync timeouts on the main branch.
Reviewer Checklist
Follow Up Work
We might need to add further jobs or increase the Rust test timeout if this isn't enough.