Fix: Incorrect serialisation of maps and sets in typescript-axios without changing other object types

[adrianhelvikspond]

This fixes the probles with #17790 by only changing object literals and null prototype objects.

This fixes #11746

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This produces type definitions that aren't compatible with the typescript-axios client:

    someField:
      uniqueItems: true
      type: array
      items:
        type: string

My fix serialises of Sets into arrays and Maps into objects, since otherwise they are not serialized with JSON.stringify, see https://stackoverflow.com/questions/31190885/json-stringify-a-set

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[wing328]

please review the build failure when you've time

cc @TiFu (2017/07) @taxpon (2017/07) @sebastianhaas (2017/07) @kenisteward (2017/07) @Vrolijkx (2017/09) @macjohnny (2018/01) @topce (2018/10) @akehir (2019/07) @petejohansonxo (2019/11) @amakhrov (2020/02) @davidgamero (2022/03) @mkusaka (2022/04) @joscha (2024/10)

[adrianhelvikspond]

Looks like an unrelated type error from what I can see. node_modules/@angular/core/discovery.d.d.ts(73,23): error TS2304: Cannot find name 'PromiseSettledResult'.

I've rebased off of the latest master now.

Edit: Had to change the typescript lib from es6 to es2020.