[REQ] Add support for openapi v3.1.0 specs

[spacether]

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

Add support for openapi 3.1.0 specs
These features will be tracked in this project:
v3.1.0 features

Describe the solution you'd like

Describe alternatives you've considered

Additional context

[spacether]

This issue is closed by the linked PR