[node-core-library] Add support json-schema 'draft-07' validation in JsonFile / JsonSchema

[bartvandenende-wm]

Summary

[node-core-library] Add support json-schema 'draft-07' validation in JsonFile / JsonSchema

Details

JsonFile and the related JsonSchema in the @rushstack/node-core-library library make use of z-schema which does not have proper support of newer json-schema standards. Json-schema draft-07 was published in 2018 and draft-04 is slowly being replaced with draft-07 in the community.

It would be great if the rushstack is able to support draft-07 json schema in addition to draft-04 to ensure backwards compatibility (specifically as most of rush its own definitions are using draft-04)

Standard questions

Please answer these questions to help us investigate your issue more quickly:

Question	Answer
Package name:	@rushstack/node-core-library
Package version?	4.3.0
Operating system?	Mac
Would you consider contributing a PR?	yes
Node.js version (node -v)?	v18.16.1

[iclanton]

Would it make sense to also add support for the latest non-draft version (2020-12)?

We could consider making this a breaking change and publishing a new major version of @rushstack/node-core-library.

[bartvandenende-wm]

I created a PR to support this ticket which migrates the underlying validator in JsonSchema from z-schema to avj which already supports the 2020 spec (opt-in).

Unfortunately vscode does not support it yet so it throws an ugly warning per https://github.com/microsoft/vscode/issues/165219. It should be pretty trivial though to add it if we wanted, but given the above I focussed in the linked PR only on draft-07 while keeping backwards compatibility with draft-04.