patch 8.2.2513: Vim9: missing part of :vim9cmd change

Problem:    Vim9: missing part of :vim9cmd change.
Solution:   Use command modifier in in_vim9script().
diff --git a/src/version.c b/src/version.c
index dabc2af..20bc9a2 100644
--- a/src/version.c
+++ b/src/version.c
@@ -751,6 +751,8 @@
 static int included_patches[] =
 {   /* Add new patch number below this line */
 /**/
+    2513,
+/**/
     2512,
 /**/
     2511,