OpenApi definition: autorest

[iverbitskiy]

Brief description of your issue

I get an error when trying generate api client using openapi definition and autorest.

autorest --csharp --input-file="https://raw.githubusercontent.com/microsoft/winget-cli-restsource/main/documentation/WinGet-1.0.0.yaml" --output-folder="1.0" --clear-output-folder

Modeler/MissingArrayElementType | Array schema 'schemas:85' is missing schema for items

I see different errors for each openapi schema versions (1.0, 1.1, 1.4).