patch 8.2.4416: Vim9: using a script-local function requires using "s:"

Problem:    Vim9: using a script-local function requires using "s:" when
            setting 'completefunc'.
Solution:   Do not require "s:" in Vim9 script. (closes #9796)
diff --git a/src/version.c b/src/version.c
index f313448..c996812 100644
--- a/src/version.c
+++ b/src/version.c
@@ -751,6 +751,8 @@
 static int included_patches[] =
 {   /* Add new patch number below this line */
 /**/
+    4416,
+/**/
     4415,
 /**/
     4414,