[REQUEST] upgrade `json-schema` support to 4.0

[Burkhard Vogel-Kreykenbohm]

Is your feature request related to a problem? Please describe.

Currently json-schema is restricted in the gemspec to be >= 2.2, < 4.0.

Describe the solution you'd like

change limit on json-schema be either >= 2.2, < 5.0 or. >= 2.2

What support could we give you, so you could implement this yourself?

breaking for 4.0 is:

• Removed data ivar from JSON::Validator so that multiple validate call become faster

I can't seem to find the usage of said ivar. Where would I need to look?

Describe alternatives you've considered

stick with the older version?

Additional context

we use schema validations for our API so keeping up to date with the latest version would be desirable as additionally there seems no support for older versions

[Roman Blanco]

The upgrade was merged and will be released in the next version.

[Burkhard Vogel-Kreykenbohm]

Thank you so much!