patch 8.2.1407: Vim9: type of list and dict only depends on first item

Problem:    Vim9: type of list and dict only depends on first item.
Solution:   Use all items to decide about the type.

src/version.c

@@ -754,6 +754,8 @@ static char *(features[]) =
 
 static int included_patches[] =
 {   /* Add new patch number below this line */
+/**/
+    1407,
 /**/
     1406,
 /**/