patch 8.2.1268: Vim9: no error for using double quote comment

Problem:    Vim9: no error for using double quote comment after :func or :def.
Solution:   Only accept double quote when not in Vim9 script and not after
            :def. (closes #6483)
diff --git a/src/version.c b/src/version.c
index e4e7024..1ab6040 100644
--- a/src/version.c
+++ b/src/version.c
@@ -755,6 +755,8 @@
 static int included_patches[] =
 {   /* Add new patch number below this line */
 /**/
+    1268,
+/**/
     1267,
 /**/
     1266,