RUST REVOLUTION: Testing Framework Unleashed in Hubble Package!

Groundbreaking Update Elevates Code Quality and Reliability with Comprehensive Unit Tests and Enhanced Scripts!

Commit Details:

test: Setup testing in rust (#1786) ## Motivation Setup testing for rust code. ## Merge Checklist _Choose all relevant options below by adding an `x` now or at any time before submitting for review_ - [X] PR title adheres to the [conventional commits](https://www.conventionalcommits.org/en/v1.0.0/) standard - [X] PR has a [changeset](https://github.com/farcasterxyz/hub-monorepo/blob/main/CONTRIBUTING.md#35-adding-changesets) - [X] PR has been tagged with a change label(s) (i.e. documentation, feature, bugfix, or chore) - [ ] PR includes [documentation](https://github.com/farcasterxyz/hub-monorepo/blob/main/CONTRIBUTING.md#32-writing-docs) if necessary. - [X] All [commits have been signed](https://github.com/farcasterxyz/hub-monorepo/blob/main/CONTRIBUTING.md#22-signing-commits) <!-- start pr-codex --> --- ## PR-Codex overview This PR sets up a testing framework for Rust in the `@farcaster/hubble` package. ### Detailed summary - Added testing framework for Rust - Updated test scripts in `package.json` - Added unit tests for utility functions - Modified a migration test script > ✨ Ask PR-Codex anything about this PR by commenting with `/codex {your question}` <!-- end pr-codex -->