Allow channel version to change in icahost

[srdtrk]

Summary

This proposal aims to enhance the ICA channel reopening process by removing the consistency checks in channel ordering and version string from icahost only

Problem Definition

Our current approach to transitioning from ordered to unordered ICA channels uses channel upgradability. We are not allowed to change the channel parameters while reopening an ICA channel. This is to prevent unauthorized relayers from modifying the ICA channel without ICA owner's consent.

Proposal

We propose an approach where icahost is to accept changes in channel parameters upon reopening, while icacontroller maintains the right to reject these changes. This strategy offers two significant advantages:

1. Flexibility for External Implementations: External icacontroller implementations, particularly those prohibiting unauthorized reopening, can seamlessly transition their channels. They can do so by simply reopening with altered parameters.
2. Future-proofing icacontroller Enhancements: This change ensures that potential future enhancements to icacontroller, which might include provisions for reopening channels with new parameters, are not impeded by icahost restrictions.

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For Admin Use

• Not duplicate issue
• Appropriate labels applied
• Appropriate contributors tagged/assigned

[srdtrk]

closed by #5613