patch 8.2.4311: Vim9: changing script variable type not caught compile time

Problem:    Vim9: changing script variable type not caught at compile time.
Solution:   Set the declared type.

src/version.c

@@ -746,6 +746,8 @@ static char *(features[]) =
 
 static int included_patches[] =
 {   /* Add new patch number below this line */
+/**/
+    4311,
 /**/
     4310,
 /**/