Disconnect message is not sent when NetworkStreamReceiveSystem disconnects a connection using a non-primary driver

Reproduction steps:

1. Open the project "multiplayer FPS template"
2. Open the “Assets/Scenes/Main.unity” Scene
3. Enter Play Mode
4. Connect a client to the server
5. Disconnect the client from the server
6. Observe the client and the Console window

Expected result: The disconnect message is sent and the client is disconnected from all drivers
Actual result: The disconnect message is not sent to clients because only the first driver is disconnected

Reproducible with: 6000.6.0b5 (reported by the user)

Reproducible on: Windows 11 (reported by the user)
Not reproducible on: No other environments tested