patch 8.2.3051: Vim9: for loop with one list variable does not work

Problem:    Vim9: for loop with one list variable does not work.
Solution:   Use a separate flag for unpacking a list. (closes #8452)
diff --git a/src/version.c b/src/version.c
index 32aec1b..1270c0c 100644
--- a/src/version.c
+++ b/src/version.c
@@ -756,6 +756,8 @@
 static int included_patches[] =
 {   /* Add new patch number below this line */
 /**/
+    3051,
+/**/
     3050,
 /**/
     3049,