Migrate Money to Vitest

[mrkldshv]

Description

Part of Shopify/hydrogen#670

Additional context

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Before submitting the PR, please make sure you do the following:

• Read the Contributing Guidelines
• Provide a description in this PR that addresses what the PR is solving, or reference the issue that it solves (e.g. fixes #123)
• Update docs in this repository according to your change
• Run yarn changeset add if this PR cause a version bump based on Keep a Changelog and adheres to Semantic Versioning

[frehner]

As always, thanks for this!

The windows CI failure appears to be unrelated to your PR; we're looking into why. I think for now we can probably just merge this despite the windows CI failure.

[mrkldshv]

@frehner Thanks for reviewing the PR!