Fix error with odd length hex check

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Name	Status	Preview	Comments	Updated (UTC)
caravan-coordinator	✅ Ready (Inspect)	Visit Preview	💬 Add feedback	Apr 28, 2024 1:41am

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🦋 Changeset detected

Latest commit: 75d47b01b35c0caeeb987f1ab417429217e928f7

The changes in this PR will be included in the next version bump.

This PR includes changesets to release 1 package

| Name | Type | | ---------------- | ----- | | @caravan/bitcoin | Minor |

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[bucko13]

Nice. Good catch. Can you add a changeset for a patch?

[benthecarman]

added