tests: don't restrict connection_reset_by_peer to unix
tests: don't restrict connection_reset_by_peer to unix

Now that we use our own TcpSocket, we can run this on windows too

Signed-off-by: Marc-Antoine Perennou <07f76cf0511c79b361712839686f3cee8c75791c@Perennou.com>

carllerche/mio,carllerche/mio