Make websockets_SUITE:secure_socket pass

OTP changed default ssl verify option in

    commit bb3603db8459e13e9e5f27c4fb46ca59ee8e4a39

    ssl: Change client default verify

Adding {verify, verify_none} to websockets_SUITE:sslopen/2 makes the
test pass, which could be ok short term. The better long term option is
to generate proper TLS data for testing.

testsuite/websockets_SUITE.erl

@@ -1564,7 +1564,8 @@ open(Host, Port) ->
     gen_tcp:connect(Host, Port, Opts).
 
 sslopen(Host, Port) ->
-    Opts = [{send_timeout, 2000}, binary, {packet, raw}, {active, false}],
+    Opts = [{send_timeout, 2000}, binary, {packet, raw}, {active, false},
+            {verify, verify_none}],
     case ssl:connect(Host, Port, Opts) of
         {ok, Sock}      -> {ok, {ssl, Sock}};
         {error, Reason} -> {error, Reason}