subnet owner can update ck burn

[open-junius]

Description

Related Issue(s)

• Closes #[issue number]

Type of Change

• [ ] Bug fix (non-breaking change which fixes an issue)
• [ ] New feature (non-breaking change which adds functionality)
• [ ] Breaking change (fix or feature that would cause existing functionality to not work as expected)
• [ ] Documentation update
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Breaking Change

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Checklist

• [ ] I have performed a self-review of my own code
• [ ] I have commented my code, particularly in hard-to-understand areas
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[github-actions[bot]]

@opentensor/cerebrum / @opentensor/gyrus / @opentensor/cortex breaking change detected! Please prepare accordingly!

[bdmason]

This is an abandonment of the plan from last week's Open Dev call where burn started at 1% for 30 days, then increased 1% per day for 17 days up to 18%.

[Swamination-Yuma]

I believe this is this already integrated in #1996? Also, the decision to allow subnets to control what childkeying does has a great impact on validators. Validators already set their own delegate take rate and child key take rate; why allow subnets to determine what childkeyers generate on the backs of those performing the validation work? The relationship is validator-to-validator. Subnets are highly likely to set this burn to zero, making the feature largely worthless when under subnet control.