patch 8.2.1928: Vim9: "silent!" not effective when list index is wrong

Problem:    Vim9: "silent!" not effective when list index is wrong.
Solution:   Ignore list indes failure when emsg_silent is set. (closes #7232)
diff --git a/src/version.c b/src/version.c
index be975a7..6504046 100644
--- a/src/version.c
+++ b/src/version.c
@@ -751,6 +751,8 @@
 static int included_patches[] =
 {   /* Add new patch number below this line */
 /**/
+    1928,
+/**/
     1927,
 /**/
     1926,