patch 8.2.2677: Vim9: cannot use only some of the default arguments

Problem:    Vim9: cannot use only some of the default arguments.
Solution:   Use v:none to use default argument value.  Remove
            uf_def_arg_idx[], use JUMP_IF_ARG_SET. (closes #6504)
diff --git a/src/version.c b/src/version.c
index 8053d92..012530f 100644
--- a/src/version.c
+++ b/src/version.c
@@ -751,6 +751,8 @@
 static int included_patches[] =
 {   /* Add new patch number below this line */
 /**/
+    2677,
+/**/
     2676,
 /**/
     2675,