BIP-352: Limiting the number of per-group recipients (K_max)

The discussion around the secp256k1 issue has seen significant progress following constructive feedback, leading to a consensus on the proposed K_max protocol change. To further this dialogue, a new Pull Request (PR) has been initiated in the Bitcoin Improvement Proposals (BIPs) repository. This move marks a pivotal step in the ongoing efforts to enhance and refine the protocols underpinning Bitcoin's infrastructure. Interested parties are encouraged to continue the conversation and contribute their insights at the BIPs repository, accessible through the provided link. This development underscores the collaborative nature of Bitcoin's community and its dedication to iterative improvement through open discourse and shared expertise.