fix mingw64 build

Signed-off-by: Mikhail Koviazin <[email protected]>

include/valkey/sockcompat.h

@@ -49,6 +49,7 @@
 /* Here we have to disable the include ordering because mstcpip.h contains
  * a bunch of macro calls that is defined in other headers. */
 /* clang-format off */
+#include <fcntl.h>
 #include <winsock2.h>
 #include <ws2tcpip.h>
 #include <stddef.h>