livekit_agent_inference.proto collides with livekit_agent.proto in generated C# code (`ServerMessage` duplicate)

Two protos declare `csharp_namespace = "LiveKit.Proto"` and both define `message ServerMessage`:

- `protobufs/livekit_agent.proto:70`
- `protobufs/agent/livekit_agent_inference.proto:200`

`protoc` emits two `LiveKit.Proto.ServerMessage` classes, which causes compilation errors in C#

Go and typescript packages do not seem to be affected