[BUG] [Java/Spring] Inline ENUMs in parameters not generated and resolved as plain type

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

Enums defined inline in the parameters section of a spec is resolved as primitive type and not an enum.

openapi-generator version

6.6.0 , 7.3.0

OpenAPI declaration file content or url

        "parameters": [
          {
            "name": "inline-enum",
            "description": "There can be only some!",
            "in": "query",
            "schema": {
              "type": "array",
              "items": {
                "type": "integer",
                "format": "int32",
                "enum": [
                  3,
                  4,
                  7,
                  9
                ],
                "default": 4
              }
            }
          }
        ]

GIST link

Generation Details

 java -jar openapi-generator-cli-7.3.0.jar generate -i openapi.json -g spring --library spring-boot -o ./tes

Start with the supplied OpenAPI declaration and run the documented openapi-generator-cli command using the spring generator and spring-boot library. Compare the generated output with the expected enum behavior for the inline array parameter; done means the inline enum is generated and resolved as an enum rather than a plain primitive type.