bump v3 version for tag

mingw-w64-headers/crt/_mingw_mac.h

diff --git a/mingw-w64-headers/crt/_mingw_mac.h b/mingw-w64-headers/crt/_mingw_mac.h
index 5168a39..245ba04 100644
--- a/mingw-w64-headers/crt/_mingw_mac.h
+++ b/mingw-w64-headers/crt/_mingw_mac.h
@@ -12,7 +12,7 @@
   __STRINGIFY(x)
 
 #define __MINGW64_VERSION_MAJOR 3
-#define __MINGW64_VERSION_MINOR 1
+#define __MINGW64_VERSION_MINOR 3
 
 /* This macro holds an monotonic increasing value, which indicates
    a specific fix/patch is present on trunk.  This value isn't related to