fix(cosmos-sdk): normalize cache validator queue key to be UTC.

[randy-cro]

Closes: #XXX

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[socket-security]

Review the following changes in direct dependencies. Learn more about Socket for GitHub.

Diff	Package	Supply Chain Security	Vulnerability	Quality	Maintenance	License
	golang/​github.com/​crypto-org-chain/​cosmos-sdk@​v0.50.6-0.20251015081243-de3619de408c ⏵ v0.50.6-0.20251023051851-c021960ecc11	+1

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