patch 8.2.1450: Vim9: no check that script-local items don't become global

Problem:    Vim9: no check that script-local items don't become global.
Solution:   Add a test.
diff --git a/src/version.c b/src/version.c
index 7243fff..ce5bfb0 100644
--- a/src/version.c
+++ b/src/version.c
@@ -755,6 +755,8 @@
 static int included_patches[] =
 {   /* Add new patch number below this line */
 /**/
+    1450,
+/**/
     1449,
 /**/
     1448,