patch 8.2.2868: Vim9: when executing compiled expression trylevel is changed

Problem:    Vim9: When executing a compiled expression the trylevel at start
            is changed but not restored. (closes #8214)
Solution:   Restore the trylevel at start.
diff --git a/src/version.c b/src/version.c
index 275b231..48f7554 100644
--- a/src/version.c
+++ b/src/version.c
@@ -751,6 +751,8 @@
 static int included_patches[] =
 {   /* Add new patch number below this line */
 /**/
+    2868,
+/**/
     2867,
 /**/
     2866,