SIGABRT should use signal(SIGABRT, sigabrt_handler) to handle on win32

The error:
E:/CI-Cor-Ready/xemu/qemu.org/tests/test-replication.c:559:33: error: invalid use of undefined type 'struct sigaction'
  559 |     sigact = (struct sigaction) {
      |                                 ^

Signed-off-by: Yonggang Luo <luoyonggang@gmail.com>
---
 tests/test-replication.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/tests/test-replication.c b/tests/test-replication.c
index e0b03dafc2..9ab3666a90 100644
--- a/tests/test-replication.c
+++ b/tests/test-replication.c
@@ -554,6 +554,9 @@ static void sigabrt_handler(int signo)
 
 static void setup_sigabrt_handler(void)
 {
+#ifdef _WIN32
+    signal(SIGABRT, sigabrt_handler);
+#else
     struct sigaction sigact;
 
     sigact = (struct sigaction) {
@@ -562,6 +565,7 @@ static void setup_sigabrt_handler(void)
     };
     sigemptyset(&sigact.sa_mask);
     sigaction(SIGABRT, &sigact, NULL);
+#endif
 }
 
 int main(int argc, char **argv)
-- 
2.27.0.windows.1