patch 9.0.0229: Vim9: error message for missing type is not clear

Problem:    Vim9: error message for missing type is not clear.
Solution:   Mention the context. (issue #10944)
diff --git a/src/version.c b/src/version.c
index 86be34d..412b3e8 100644
--- a/src/version.c
+++ b/src/version.c
@@ -732,6 +732,8 @@
 static int included_patches[] =
 {   /* Add new patch number below this line */
 /**/
+    229,
+/**/
     228,
 /**/
     227,