deps: bump sdk v0.46.12 - release v5.3.x

[crodriguezvega]

Description

ref: #3237

Commit Message / Changelog Entry

deps: bump Cosmos SDK v0.46.12

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• Wrote unit and integration tests.
• Updated relevant documentation (docs/) or specification (x/<module>/spec/).
• Added relevant godoc comments.
• Provide a commit message to be used for the changelog entry in the PR description for review.
• Re-reviewed Files changed in the Github PR explorer.
• Review Codecov Report in the comment section below once CI passes.

[colin-axner]

Thanks @crodriguezvega 🙏