patch 8.2.3834: Test_out_cb often fails on Mac

Problem:    Test_out_cb often fails on Mac.
Solution:   Increase the timeout with every retry.
diff --git a/src/version.c b/src/version.c
index b2f02ec..368384c 100644
--- a/src/version.c
+++ b/src/version.c
@@ -750,6 +750,8 @@
 static int included_patches[] =
 {   /* Add new patch number below this line */
 /**/
+    3834,
+/**/
     3833,
 /**/
     3832,