`override-with-generic-response` not working from `1.6.8` onwards

[ahopgood]

Describe the bug
When using the springdoc.override-with-generic-response=true property after version 1.6.7 methods annotated with @ResponseStatus and @ExceptionHandler are no longer included in the swagger definition.

This applies for handler methods inside either the @RestController class or a @ControllerAdvice class for handling global exceptions.

To Reproduce
Steps to reproduce the behavior:

• Spring Boot Version: 2.7.2
• springdoc-openapi-ui Versions: 1.6.8, 1.6.9, 1.6.10
• Error statuses are not shown as responses on the API endpoint path.
• Example minimal spring project https://github.com/ahopgood/springdoc-override-with-generic-response-regression where the version can be changed to view the different behaviour
• Actual response:

openapi: 3.0.1
info:
  title: Hello API
  description: An API for saying hello.
  version: 1.0-SNAPSHOT
servers:
- url: http://0.0.0.0:8080
  description: Generated server url
tags:
- name: Hello Api
paths:
  /api/hello:
    get:
      tags:
      - Hello Api
      summary: Says hello
      operationId: getHello
      responses:
        "200":
          description: OK
          content:
            text/plain:
              schema:
                type: string
components: {}

Expected behavior

• It is expected that every @ExceptionHandler method that is annotated with @ResponseStatus should show as a response for every API path in the swagger doc when springdoc.override-with-generic-response=true
• Expected output

openapi: 3.0.1
info:
  title: Hello API
  description: An API for saying hello.
  version: 1.0-SNAPSHOT
servers:
- url: http://0.0.0.0:8080
  description: Generated server url
tags:
- name: Hello Api
paths:
  /api/hello:
    get:
      tags:
      - Hello Api
      summary: Says hello
      operationId: getHello
      responses:
        "403":
          description: Forbidden
          content:
            '*/*':
              schema:
                type: string
        "500":
          description: Internal Server Error
          content:
            '*/*':
              schema:
                type: string
        "200":
          description: OK
          content:
            text/plain:
              schema:
                type: string
components: {}

Screenshots
Here is an example of the expected output where the errors are shown in the endpoint documentation:

When using 1.6.8 or above the error statuses are missing:

Additional context
Add any other context about the problem here.