net: skip TestUnixConnLocalWindows on windows/arm

Similarly to CL 138676, skip TestUnixConnLocalWindows on windows/arm.

Fixes #28061

Change-Id: I2270d2f9d268e85ea567be0c0c37c48e4d482282
Reviewed-on: https://go-review.googlesource.com/c/140397
Run-TryBot: Alex Brainman <alex.brainman@gmail.com>
Reviewed-by: Ian Lance Taylor <iant@golang.org>

src/net/unixsock_windows_test.go

@@ -34,8 +34,11 @@ func isBuild17063() bool {
 }
 
 func TestUnixConnLocalWindows(t *testing.T) {
-	if runtime.GOARCH == "386" {
+	switch runtime.GOARCH {
+	case "386":
 		t.Skip("not supported on windows/386, see golang.org/issue/27943")
+	case "arm":
+		t.Skip("not supported on windows/arm, see golang.org/issue/28061")
 	}
 	if !isBuild17063() {
 		t.Skip("unix test")