chore(console): use .mjs for the dev scripts

[skyrpex]

This is a workaround to make the dev scripts for the Console work again. The issue was related to using tsx as the dev script executor.

[github-actions]

Thanks for opening this pull request! 🎉
Please consult the contributing guidelines for details on how to contribute to this project.
If you need any assistence, don't hesitate to ping the relevant owner over Slack.

Topic	Owner
Wing SDK and utility APIs	@chriscbr
Wing Console	@ainvoner, @skyrpex, @polamoros
JSON, structs, primitives and collections	@hasanaburayyan
Platforms and plugins	@hasanaburayyan
Frontend resources (website, react, etc)	@tsuf239
Language design	@chriscbr
VSCode extension and language server	@markmcculloh
Compiler architecture, inflights, lifting	@yoav-steinberg
Wing Testing Framework	@tsuf239
Wing CLI	@markmcculloh
Build system, dev environment, releases	@markmcculloh
Library Ecosystem	@chriscbr
Documentation	@hasanaburayyan
SDK test suite	@tsuf239
Examples	@hasanaburayyan
Wing Playground	@eladcon

[monadabot]

Console preview environment is available at https://wing-console-pr-6220.fly.dev 🚀

Last Updated (UTC) 2024-04-12 08:27

[mergify]

Thanks for contributing, @skyrpex! This PR will now be added to the merge queue, or immediately merged if use-mjs-for-console-dev-scripts is up-to-date with main and the queue is empty.

[monadabot]

Congrats! 🚀 This was released in Wing 0.70.0.