feat: authentication should be reflected into children controller
### Is your feature request related to a problem? Please describe.

When i declare a controller like 

```ts
@Controller({
  path: '/path',
  children: [ChildrenController]
})
@CustomAuth()
export class ParentController {
```

 i would expect the Authentication to be reflected to the children controller as well 🤔

### Describe the solution you'd like

_No response_

### Describe alternatives you've considered

_No response_

### Additional context

_No response_

### Acceptance criteria

_No response_