In c83f0005 (add concurrency queue limit 2022-01-24), we modified the
limit handler to return immediately with an error if certain limit
conditions are reached.

In the wrappedStream however, RecvMsg() merely logs the error. This will
block indefinitely, because when the limiter returns with an error, it
will no longer try to get a concurrency slot. Thus this function will
wait until the context is cancelled.

Fix this by returning an error when we get an error from the limiter.

Changelog: fixed