SocketTest.Send fails spuriously on TravisCI

[kusma]

The SocketTest.Send test from the Uno.Net.Sockets.Test test-suite fails spuriously on TravisCI / macOS, with the following output:

FAILED:  Uno.Net.Sockets.Test.Uno.Net.Sockets.Test.SocketTest.Send
         Assertion failed in 'Send', at /Users/travis/build/fuse-open/uno/Library/Core/Uno.Net.Sockets/Tests/Socket.Test.uno:227
           Expected: True
           But got : False

[kusma]

This seems to only happen in the .NET target...

[kusma]

example-failure

[BeeWarloc]

~Another incident~

I restarted the build right after linking this, and then the new build seems replace the old build log.

[kusma]

Yeah, it's quite sad. My plan is just to disable this test for the macOS + .NET target for now, but I haven't gotten around to it yet.