Aggregate providers must use the `.provider` attribute for injection Markers

[HoopsMcann]

Description

While trying to inject a provider.Aggregate into my FastAPI endpoint I discovered that using the marker pattern: Provider[foo] does not work as expected, contrary to what the documentation indicates docs

Example

class ServiceA
    ...

class ServiceB
   ...

class Container(containers.DeclaritiveContainer):
    serviceA = providers.Factory(ServiceA)
    serviceB = providers.Factory(ServiceB)

    services = providers.Aggregate(serviceA=serviceA, serviceB=serviceB)


container = Container()
container.wire(modules=[__name__])

@router.post("/v1")
@inject
async def my_endpoint(dummy: TestPost, service=Depends(Provide[Container.services])): # <-- TypeError: missing 1st required positional argument: "provider name"
    ...

# However, this works:
@router.post("/v1")
@inject
async def my_endpoint(dummy: TestPost, service=Depends(Provide[Container.services.provider])): # <-- Works as expected
    ...