feat!: cliui is now ESM only

[shadowspawn]

Highlights:

• drop cjs
• update dependencies
• esm now supports wrapping
• require node 20

Wrapping issues: #89 #138
Wrapping PRs: #139 #143

See also yargs issue for ESM only: yargs/yargs#2451

Proposing require Node.js 20 since 18 is dropping out of LTS on 2025-04-30. Hopefully 20 will have require(esm) by default in v20.19.0: nodejs/node#57349

To do:

• look at deno
• look at browser

[shadowspawn]

Deno related code updated to support wrapping and test now passing.

A high level question is with the Deno support for node packages so good, is there any benefit to continuing to publish a deno build separately?

[bcoe]

Amazing @shadowspawn thank you for doing this 👏 I was dreading having to do so.

[bcoe]

A high level question is with the Deno support for node packages so good, is there any benefit to continuing to publish a deno build separately?

I agree, we might want to stop doing this. Perhaps in the future after we finish this migration to ESM though?

[bcoe]

I'm bumping into some issues in yargs with Node@<20.19.0, should we consider making this our base engine version?

[shadowspawn]

Is 20.19.0 around something in particular? require(esm) ?

In which case, we might want a minimum for node 22 as well.

I am not against the idea of minimum versions within a major when there is a reason. (I need to remind myself that the early minor versions were before LTS status, so clearly not all equal! 😆 )

[shadowspawn]

I didn't notice this had been merged when I made this command. No reply necessary!

[bcoe]

One comment and potential change.

[bcoe]

I think it's reasonable that cliui could have a looser version range supported than yargs.