From python-socketio >=4.4 client does not raise when our socket server refuses connection

[pcrespov]

python-socketio release >=4.4 fail this test

pytest --ff services/web/server/tests/unit/with_dbs/test_resource_manager.py::test_anonymous_websocket_connection

the test checks that when socket connection is refused (non-authorized) the server handler services/web/server/src/simcore_service_webserver/socketio/handlers.py raises an exception that randomly reaches the client

See test failure https://travis-ci.com/github/ITISFoundation/osparc-simcore/jobs/317121817#L1092

These were upgraded dependencies

then, we downgraded python-socketio and increased until it failed

See PR #1444 to understand all process

[pcrespov]

with 4.3, the exception message is also different

[pcrespov]

@sanderegg Another test in test_resource_manager is failing and now is not as random as in the past:

see the redis warning (BTW why closing is logged as warning? was it unexpected?)