patch 8.2.4293: Vim9: when copying a list it gets type list<any>

Problem:    Vim9: when copying a list it gets type list<any> even when the
            original list did not have a type.
Solution:   Only set the type when the original list has a type. (closes #9692)
diff --git a/src/version.c b/src/version.c
index 0419978..5140eb9 100644
--- a/src/version.c
+++ b/src/version.c
@@ -747,6 +747,8 @@
 static int included_patches[] =
 {   /* Add new patch number below this line */
 /**/
+    4293,
+/**/
     4292,
 /**/
     4291,