[BUG][Typescript] Unique array of enum values is handled incorrectly

[t3hk0d3]

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

Unique Array of Enum properties are not generated properly. Instead of Set<Enum> they are exposed just as Enum:

export class TestRequest {
   'testProperty'?: TestRequestTestPropertyEnum
}

Expected behaviour:

export class TestRequest {
   'testProperty'?: Set<TestRequestTestPropertyEnum>
}

openapi-generator version

7.0.0

OpenAPI declaration file content or url

definitions:
  TestRequest:
    type: object
    properties:
      test_property:
        type: array
        uniqueItems: true
        items:
          type: string
          enum:
            - foo
            - bar
            - baz
            - dar

Generation Details

Steps to reproduce

1. Generate any typescript client with following set of enums property
2. Expected generated property type is Set<TestRequestTestPropertyEnum>, but currently it is TestRequestTestPropertyEnum instead

Related issues/PRs

Kinda related issue #14892 (with dead fix PR #15272)

[t3hk0d3]

it was actually a bug in moustache template 😢