Support fourfold nested lists

[gschulze]

This PR adds support for introspecting four-fold nested lists, which in turn allows proper representation of GeoJSON multipolygons (https://datatracker.ietf.org/doc/html/rfc7946#section-3.1.7).

See #2643

[alessdiimperio]

what version of 16 supports introspecting 4d arrays? I am getting the following error

Error: JavaScriptError: Error-Decorated type deeper than introspection query.-u@

#3948 was added to version 17 alpha 3

are there any versions lower than 17 that has this support for introspection query

[JoviDeCroock]

@alessdiimperio this should be in 16.8.0

[alessdiimperio]

🤔 im on 16.8.1 and it builds but i get the error when using the introspection query on playground or using the codegen-cli for iOS
it seems as though it supports nested 4d arrays however it doesn't allow me to query for introspection

[alessdiimperio]

also it's stated as being on version 17.0.0-alpha 3...
I did think it sounded suspect that support for it in the schema was included in 16.8 but not for introspection. however i can compile fine but not introspect and thus thought it was so. Are you certain that one can introspect 4d arrays in 16.8?

[JoviDeCroock]

This PR can be seen in the release notes https://github.com/graphql/graphql-js/releases/tag/v16.8.0

[alessdiimperio]

Alright, 🤔 why is this then happening to me while on 16.8.1. Very strange, i'll try and see if we are doing some funny business somewhere. cheers.