patch 8.2.2799: Vim9: type casts don't fully work at the script level

Problem:    Vim9: type casts don't fully work at the script level.
Solution:   Implement the missing piece.

src/version.c

@@ -750,6 +750,8 @@ static char *(features[]) =
 
 static int included_patches[] =
 {   /* Add new patch number below this line */
+/**/
+    2799,
 /**/
     2798,
 /**/