patch 8.2.3331: Coverity warns for using value without boundary check

Problem:    Coverity warns for using value without boundary check.
Solution:   Add a boundary check.
diff --git a/src/version.c b/src/version.c
index 2b8b508..2130867 100644
--- a/src/version.c
+++ b/src/version.c
@@ -756,6 +756,8 @@
 static int included_patches[] =
 {   /* Add new patch number below this line */
 /**/
+    3331,
+/**/
     3330,
 /**/
     3329,