[BUG] [csharp-netcore] Wrong type for integer of range 0-4294967295

[arvindpdmn]

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?
• [Optional] Sponsorship to speed up the bug fix or feature request (example)

Description

When integer range is specified as 0-4294967295, generated code uses the type "int". Instead "uint" should be used. Compilation error occurs on the line: if (this.ServiceId > (int)4294967295)

openapi-generator version

Version used is 6.2.1. Did not test against the latest commit on the master branch.

OpenAPI declaration file content or url

openapi: 3.0.0
info:
  version: '1.0.0'
  title: 'Use uint rather than int'
paths: {}
components:
  schemas:
    ServiceDetails:
      type: object
      properties:
        serviceId:
          $ref: '#/components/schemas/Uint32'
    Uint32:
      type: integer
      minimum: 0
      maximum: 4294967295 #(2^32)-1

Generation Details

java -jar C:\openapi-generator-cli.jar generate  -i C:\IntegerRange.yaml -g csharp-netcore -o C:\IntegerRange --additional-properties=targetFramework=net6.0 --additional-properties=packageName=Com.Example --skip-validate-spec

Steps to reproduce

Just run the command above and compile the generated model file. We will see the error.

Related issues/PRs

None

Suggest a fix

Check range and select "uint" if minimum value is 0.