patch 8.2.3267: Vim9: crash when disassembling using deleted script variable

Problem:    Vim9: crash when disassembling a function that uses a deleted
            script variable.
Solution:   Check the variable still exists. (closes #8683)
diff --git a/src/version.c b/src/version.c
index 45cb4b6..962f002 100644
--- a/src/version.c
+++ b/src/version.c
@@ -756,6 +756,8 @@
 static int included_patches[] =
 {   /* Add new patch number below this line */
 /**/
+    3267,
+/**/
     3266,
 /**/
     3265,