patch 8.2.3865: Vim9: compiler complains about using "try" as a struct member

Problem:    Vim9: compiler complains about using "try" as a struct member.
Solution:   Rename "try" to "tryref".
diff --git a/src/version.c b/src/version.c
index bbb2157..90b35d3 100644
--- a/src/version.c
+++ b/src/version.c
@@ -750,6 +750,8 @@
 static int included_patches[] =
 {   /* Add new patch number below this line */
 /**/
+    3865,
+/**/
     3864,
 /**/
     3863,