[BUG][JAVA] Model generation of array with uniqueItems=true is not working

[MelleD]

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

Currently no more sets are generated if uniqueItems=true is set.

openapi-generator version

7.4.0/latest

OpenAPI declaration file content or url

If you post the code inline, please wrap it with

        stringSet:
          type: array
          uniqueItems: true
          items:
            type: string
        stringDefaultSet:
          type: array
          uniqueItems: true
          default:
            - A
            - B
          items:
            type: string
        stringEmptyDefaultSet:
          type: array
          uniqueItems: true
          default: []
          items:
            type: string

Out put is

  @Valid
  private List<String> stringSet = new ArrayList<>();

  @Valid
  private List<String> stringDefaultSet = new ArrayList<>(Arrays.asList("A", "B"));

  @Valid
  private List<String> stringEmptyDefaultSet = new ArrayList<>();

Generation Details

Spring Boot Cloud

Steps to reproduce