patch 8.2.3166: Vim9: nested autoload call error overruled by "Unknown error"

Problem:    Vim9: nested autoload call error overruled by "Unknown error".
Solution:   Check need_rethrow before giving an "Unknown error".
            (closes #8568)
diff --git a/src/version.c b/src/version.c
index ba8362b..896ca07 100644
--- a/src/version.c
+++ b/src/version.c
@@ -756,6 +756,8 @@
 static int included_patches[] =
 {   /* Add new patch number below this line */
 /**/
+    3166,
+/**/
     3165,
 /**/
     3164,