patch 8.2.3894: Vim9: no proper type check for first argument of call()

Problem:    Vim9: no proper type check for first argument of call().
Solution:   Add specific type check.

src/version.c

@@ -749,6 +749,8 @@ static char *(features[]) =
 
 static int included_patches[] =
 {   /* Add new patch number below this line */
+/**/
+    3894,
 /**/
     3893,
 /**/