Send all received WebSocket frames to app

Prior to this commit, if the WebSocket client received multiple
WebSocket frames in a single Erlang message by gen_tcp, the WebSocket
client sent only the first received WebSocket frame to the application.

This commit fixes this bug by having the WebSocket client send all
WebSocket frames to the application.

(cherry picked from commit 3d7a027)

Author: ansd

deps/rabbitmq_ct_client_helpers/src/rfc6455_client.erl

@@ -160,7 +160,7 @@ do_recv(State = #state{phase = opening, ppid = PPid, data = Data}) ->
             State#state{phase = open,
                         data = Data1}
     end;
-do_recv(State = #state{phase = Phase, data = Data, socket = Socket, transport = Transport, ppid = PPid})
+do_recv(State0 = #state{phase = Phase, data = Data, socket = Socket, transport = Transport, ppid = PPid})
   when Phase =:= open orelse Phase =:= closing ->
     R = case Data of
             <<F:1, _:3, O:4, 0:1, L:7, Payload:L/binary, Rest/binary>>
@@ -181,8 +181,10 @@ do_recv(State = #state{phase = Phase, data = Data, socket = Socket, transport =
         end,
     case R of
         moredata ->
-            State;
-        _ -> do_recv2(State, R)
+            State0;
+        _ ->
+            State = do_recv2(State0, R),
+            do_recv(State)
     end.
 
 do_recv2(State = #state{phase = Phase, socket = Socket, ppid = PPid, transport = Transport}, R) ->