Issue makeDynCall

[w3leee]

Starting with Unity 2021, we changed the way to use makeDynCall. https://docs.unity3d.com/2021.3/Documentation/Manual/web-interacting-browser-example.html

Update Runtime.dynCall("viii", webSocketState.onMessage, [ instanceId, buffer, dataBuffer.length ]);
to {{{ makeDynCall('viii', 'webSocketState.onMessage') }}}(instanceId, buffer, dataBuffer.length);

[nyalpin]

thanks!