Error monitoring in RPC contexts

The `SentryGlobalFilter` does capture exceptions in RPC contexts. However, in this path we log a warning that users should provide their own exception filter and end with a void return (likely leading to weird responses in the application). Maybe we can improve this, for instance by vendoring in the logic from the `BaseRpcExceptionFilter` (see implementation [here]()). This would allow users to use the `SentryGlobalFilter` in rpc contexts.