Skip one more tests which depends on networking

Signed-off-by: Igor Raits <ignatenkobrain@fedoraproject.org>

rust-mio.spec

@@ -84,7 +84,7 @@ which use "with-deprecated" feature of "%{crate}" crate.
 %if %{with check}
 %check
 # Tests below depend on having networking present
-%cargo_test -- -- --skip poll::Poll --skip poll::Poll::deregister --skip poll::Poll::register --skip poll::Poll::reregister --skip sys::unix::ready::UnixReady
+%cargo_test -- -- --skip poll::Poll --skip poll::Poll::deregister --skip poll::Poll::register --skip poll::Poll::reregister --skip sys::unix::ready::UnixReady --skip test_multicast::test_multicast
 %endif
 
 %changelog