Update Javy related dependencies

[jeffcharles]

WHY are these changes introduced?

There was a bug identified in the version of QuickJS used by shopify_functions_javy_v3.wasm that was fixed in shopify_functions_javy_v4.wasm.

WHAT is this pull request doing?

Updates function-runner, the Javy CLI, and the Functions plugin to the latest versions.

How to test your changes?

Run echo "{}" | pnpm shopify app function run --path <path_to_js_function_extension> and confirm the Function executes. Feel free to substitute the "{}" with valid input for the Function to see the Function succeed instead of the function-runner saying the function failed to execute because it was missing some property in the input that it needs to succeed.

Checklist

• I've considered possible cross-platform impacts (Mac, Linux, Windows)
• I've considered possible documentation changes
• I've considered analytics changes to measure impact
• The change is user-facing — I've identified the correct bump type (patch for bug fixes · minor for new features · major for breaking changes) and added a changeset with pnpm changeset add