Diff should detect deprecated directive on input field and field argument

[ZejunNinaWang]

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

The GraphQL Spec recently allowed the deprecated directive to be added on input field and field argument (pr link). However, the diff API in latest graphql-inspector does not detect the deprecated directive added on input field and field argument.

Describe the solution you'd like

Check if a field argument or input field is deprecated using the isDeprecated function and add to changes if found any

Describe alternatives you've considered

none

Additional context

[richard-kramer]

This is pretty important for me, as argument deprecations fly under the radar, but need to be communicated to the users. Is there any way for me to accelerate the integration of a fix? I could provide some support if needed, but am not familiar with the development of the project.