patch 8.2.2740: Vim9: lambda with varargs doesn't work

Problem:    Vim9: lambda with varargs doesn't work.
Solution:   Make "...name" work.  Require type to be a list.
diff --git a/src/errors.h b/src/errors.h
index 0225531..e4836bc 100644
--- a/src/errors.h
+++ b/src/errors.h
@@ -395,3 +395,5 @@
 	INIT(= N_("E1178: Cannot lock or unlock a local variable"));
 EXTERN char e_failed_to_extract_pwd_from_str_check_your_shell_config[]
 	INIT(= N_("E1179: Failed to extract PWD from %s, check your shell's config related to OSC 7"));
+EXTERN char e_variable_arguments_type_must_be_list_str[]
+	INIT(= N_("E1180: Variable arguments type must be a list: %s"));