feature: when unwrapping `Annotated` types, validators seemingly do not get picked up

[maxschulz-COL]

Is your feature request related to a problem? Please describe.

Let me reopen a follow up from the previous issue:

If using the Annotated pattern to define validators as shown above, it seems that while we can unwrap the annotation (which fixes most of the issues), it does not pick up on the validator itself.

E.g. when defining

def random_add(v: str) -> str:
    return v + "1"

with

    field_without_default: Annotated[str, AfterValidator(random_add)]
    """Shows the *[Required]* marker in the signature."""

the outcome does not show under validators

[maxschulz-COL]

@pawamoy hey hey, just wanted to bring this up to your attention again :)

[pawamoy]

Hey @maxschulz-COL, thanks for the ping, I saw your feature request and am working through my backlog 😄