grpcurl reflection in IIS(express) error "server closed the stream without sending trailers"

### Is there an existing issue for this?

- [x] I have searched the existing issues

### Describe the bug

aspnetcore grpc reflection doesn't seem to work correctly on IIS/IISexpress:

PS > grpcurl localhost:44324 list
Failed to list services: rpc error: code = Internal desc = server closed the stream without sending trailers

### Expected Behavior

PS > grpcurl localhost:44324 list
grpc.reflection.v1alpha.ServerReflection
...

### Steps To Reproduce

Create a .NET 8 grpc service with reflection enabled and run it in IISexpress. This will fail as described above. Running the https profile works fine. Same issue on Server 2022+IIS.

### Exceptions (if any)

_No response_

### .NET Version

9.0.100-rc.2.24474.11

### Anything else?

_No response_