patch 8.2.2620: Vim9: Using #{ for a dictionary gives strange errors

Problem:    Vim9: Using #{ for a dictionary gives strange errors.
Solution:   Give an error when using #{ for a comment after a command.
diff --git a/src/version.c b/src/version.c
index 74eec46..dfc0f03 100644
--- a/src/version.c
+++ b/src/version.c
@@ -751,6 +751,8 @@
 static int included_patches[] =
 {   /* Add new patch number below this line */
 /**/
+    2620,
+/**/
     2619,
 /**/
     2618,