patch 8.2.0323: Vim9: calling a function that is defined later is slow

Problem:    Vim9: calling a function that is defined later is slow.
Solution:   Once the function is found update the instruction so it can be
            called directly.

src/version.c

@@ -738,6 +738,8 @@ static char *(features[]) =
 
 static int included_patches[] =
 {   /* Add new patch number below this line */
+/**/
+    323,
 /**/
     322,
 /**/