[browser][MT] deadlock in BrowserWebSocket when used from multiple threads

[pavelsavara]

System.Net.WebSockets.Client.Tests.InvokerCloseTest.CloseOutputAsync_ExpectedStates

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Issue Details

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System.Net.WebSockets.Client.Tests.InvokerCloseTest.CloseOutputAsync_ExpectedStates

Author:	pavelsavara
Assignees:	pavelsavara
Labels:	arch-wasm, area-System.Runtime.InteropServices.JavaScript, os-browser
Milestone:	9.0.0

[pavelsavara]

This is caused by making synchronous calls to JS interop with the BrowserWebSocket._thisLock locked on multiple threads