patch 8.2.1503: Vim9: error for autocmd defined in :def in legacy script

Problem:    Vim9: error for an autocmd defined in a :def function in legacy
            Vim script.
Solution:   Don't check the variable type. (closes #6758)
diff --git a/src/version.c b/src/version.c
index 62692b8..fe2a7ad 100644
--- a/src/version.c
+++ b/src/version.c
@@ -755,6 +755,8 @@
 static int included_patches[] =
 {   /* Add new patch number below this line */
 /**/
+    1503,
+/**/
     1502,
 /**/
     1501,