When using `from __future__ import annotations` with `Annotated[SomeClass, Depends()]`
where SomeClass is defined after the function, FastAPI was unable to properly
resolve the forward reference and treated the parameter as a query parameter
instead of a dependency.
This fix adds special handling to partially resolve Annotated string annotations,
extracting metadata (like Depends) even when the inner type cannot be fully resolved.
Fixes#13056
lif