Fix MQTT test flakes

Tests session_reconnect and session_takeover were flaky, specifically
when run under Khepri.

The issue was in the test itself that the connect properties didn't
apply. Therefore, prior to this commit an exclusive queue got created.

Author: ansd

deps/rabbitmq_mqtt/test/shared_SUITE.erl

@@ -1404,14 +1404,14 @@ session_takeover(Config) ->
 session_switch(Config, Disconnect) ->
     Topic = ClientId = atom_to_binary(?FUNCTION_NAME),
     %% Connect to old node in mixed version cluster.
-    C1 = connect(ClientId, Config, 1, [non_clean_sess_opts()]),
+    C1 = connect(ClientId, Config, 1, non_clean_sess_opts()),
     {ok, _, [1]} = emqtt:subscribe(C1, Topic, qos1),
     case Disconnect of
         true -> ok = emqtt:disconnect(C1);
         false -> unlink(C1)
     end,
     %% Connect to new node in mixed version cluster.
-    C2 = connect(ClientId, Config, 0, [non_clean_sess_opts()]),
+    C2 = connect(ClientId, Config, 0, non_clean_sess_opts()),
     case Disconnect of
         true -> ok;
         false -> assert_v5_disconnect_reason_code(Config, ?RC_SESSION_TAKEN_OVER)