patch 9.0.0425: autocmd test is a bit flaky on MS-Windows

Problem:    Autocmd test is a bit flaky on MS-Windows.
Solution:   Add a bit more sleeping. (Ken Takata, closes #11095)
diff --git a/src/version.c b/src/version.c
index 24c99fd..34fa8ef 100644
--- a/src/version.c
+++ b/src/version.c
@@ -704,6 +704,8 @@
 static int included_patches[] =
 {   /* Add new patch number below this line */
 /**/
+    425,
+/**/
     424,
 /**/
     423,