Update KIP-223 with EIP-7623

[2dvorak]

Proposed changes

• This PR updates KIP-223 to be compliant with EIP-7623 instead of EIP-2028.

Types of changes

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• Bugfix
• KIP Proposal
• KIP Improvement

Checklist

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• Used the suggested template: https://github.com/kaiachain/KIPs/blob/main/kip-template.md
• I have read the CLA and signed by comment I have read the CLA Document and I hereby sign the CLA in first time contribution
• I have added necessary documentation (if appropriate)
• Any dependent changes have been merged and published in downstream modules

Related issues

• None

[github-actions]

CLA Assistant Lite bot All contributors have signed the CLA ✍️ ✅

[2dvorak]

I have read the CLA Document and I hereby sign the CLA

[blukat29]

Much clearer. Thanks!