[BUG][csharp-netcore] Path level servers overrides are ignored

Created by: hamermike

Bug Report Checklist

Have you provided a full/minimal spec to reproduce the issue?
Have you validated the input using an OpenAPI validator (example)?
Have you tested with the latest master to confirm the issue still exists?
Have you searched for related issues/PRs?
What's the actual output vs expected output?
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Description

Path level servers overrides are ignored. Using the provided sample both https://api.pet.com/v2 and https://api.user.com/v2 are not included within the generated SDK. This is an issue with all specs tested.

openapi-generator version

OpenAPI declaration file content or url

openapi-test.yaml.zip

servers:
- url: https://api.root.com/v3
# ... 
paths:
  /pet:
    servers:
      - url: https://api.pet.com/v2
   # ...
   /user:
    servers:
      - url: https://api.user.com/v2

Generation Details

openapi-generator-cli generate -g csharp-netcore -i openapi-test.yaml -o sdk-test

Steps to reproduce

Generate the SDK using the provided spec.
Verify that the generated SDK ignores servers defined within paths.

Related issues/PRs

Related issue from 2018 with a different SDK https://github.com/OpenAPITools/openapi-generator/issues/1694.

Suggest a fix

Servers defined within paths should be used for those paths which have been defined.