doc: add esm examples to node:util

[mfdebian]

This PR adds the missing ESM counterparts of the CJS examples for the Util documentation.

I also destructured the (require) imports for the current CJS examples following a feedback I had received in previous PRs.

For the numericSeparator example of util.inspect(object[, showHidden[, depth[, colors]]]) I took the liberty to leave the numbers like this:

const thousand = 1000;
const million = 1000000;
...

Instead of:

const thousand = 1_000;
const million = 1_000_000;
...

Because that's actually what we want to showcase, how numericSeparator would add the missing underscores to print:

1_000
1_000_000
...

For the Box and util.inspect.custom examples at Custom inspection functions on objects I added a final console.log so users don't have to add it themselves when copy/pasting the example to see an output.

For the util.inspect.defaultOptions example I incremented the number of 0's to be added just so the output is more dramatic and it would showcase the function better imo, it would also print a square on the terminal which looks pretty awesome:

[
  0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
  0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
  0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
  0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
  0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
  0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
  0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
  0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
  0, 0, 0, 0,
  ... 56 more items
]
[
  0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
  0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
  0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
  0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
  0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
  0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
  0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
  0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
  0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
  0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
  0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
  0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
  0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0
]

For the promisify() class methods that use this example at util.promisify(original), the one with:

class Foo {
  constructor() {
    this.a = 42;
  }

  bar(callback) {
    callback(null, this.a);
  }
}
...

I updated the error message, since now it's: TypeError: Cannot read properties of undefined (reading 'a') instead of TypeError: Cannot read property 'a' of undefined.

Lastly, for the util.styleText(format, text[, options]) there was a typo on the example that recently got fixed but only for the ESM part, this adds the CJS fix for that typo.

I think that's all, tell me what you think and I can update/change things around!

I've tested every single example and they all work/behave as expected.

As always, best regards 💚

Edit:
For the util.deprecate(fn, msg[, code]) example (the second one) I also added the functions and messages so users can just copy/paste that portion of code and run it without encountering errors.

[AugustinMauroy]

Why do we need destructed object ?