[WIP] chore: use caret version for Viem

[enesozturk]

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Description

Testing caret version for the Viem dependency. Related: reown-com/appkit#5038

• WIP: This will be tested with a canary. Don't merge

Type of change

• Chore (non-breaking change that addresses non-functional tasks, maintenance, or code quality improvements)
• Bug fix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)
• Draft PR (breaking/non-breaking change which needs more work for having a proper functionality [Mark this PR as ready to review only when completely ready])
• Breaking change (fix or feature that would cause existing functionality to not work as expected)

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Checklist

• I have performed a self-review of my own code
• My changes generate no new warnings
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[Copilot]

Pull Request Overview

This PR updates the Viem dependency from a pinned version to a caret range to allow for minor version updates. This is a work-in-progress change being tested with a canary release before potential merging.

• Changes Viem dependency version specification from exact pinning to caret range

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