patch 8.2.3457: MS-Windows Vim9: test executed and fails

Problem:    MS-Windows Vim9: test executed and fails.
Solution:   Add extra check for not being on MS-Windows.
diff --git a/src/version.c b/src/version.c
index 5c4eca6..0046bbd 100644
--- a/src/version.c
+++ b/src/version.c
@@ -758,6 +758,8 @@
 static int included_patches[] =
 {   /* Add new patch number below this line */
 /**/
+    3457,
+/**/
     3456,
 /**/
     3455,