patch 8.2.2164: Vim9: autoload function doesn't work in uppercased script

Problem:    Vim9: autoload function doesn't work in script that starts with
            an upper case letter.
Solution:   Check for the autoload character. (closes #7502)
diff --git a/src/version.c b/src/version.c
index 8f2c50a..a97037d 100644
--- a/src/version.c
+++ b/src/version.c
@@ -751,6 +751,8 @@
 static int included_patches[] =
 {   /* Add new patch number below this line */
 /**/
+    2164,
+/**/
     2163,
 /**/
     2162,