patch 8.2.3646: using <sfile> in a function gives an unexpected result

Problem:    Using <sfile> in a function gives an unexpected result.
Solution:   Give an error in a Vim9 function. (issue #9189)
diff --git a/src/version.c b/src/version.c
index d91f522..c76ce02 100644
--- a/src/version.c
+++ b/src/version.c
@@ -758,6 +758,8 @@
 static int included_patches[] =
 {   /* Add new patch number below this line */
 /**/
+    3646,
+/**/
     3645,
 /**/
     3644,