patch 8.2.3858: Vim9: not enough tests

Problem:    Vim9: not enough tests.
Solution:   Add tests for :try/:catch and :redir. Add missing type check.
diff --git a/src/version.c b/src/version.c
index b3121d1..a7f372d 100644
--- a/src/version.c
+++ b/src/version.c
@@ -750,6 +750,8 @@
 static int included_patches[] =
 {   /* Add new patch number below this line */
 /**/
+    3858,
+/**/
     3857,
 /**/
     3856,