patch 8.2.4106: going over the end of the w_lines array

Problem:    Going over the end of the w_lines array.
Solution:   Break out of the loop when "idx" is too big. (issue #9540)
diff --git a/src/version.c b/src/version.c
index 8ddd419..2e8e9f3 100644
--- a/src/version.c
+++ b/src/version.c
@@ -751,6 +751,8 @@
 static int included_patches[] =
 {   /* Add new patch number below this line */
 /**/
+    4106,
+/**/
     4105,
 /**/
     4104,