patch 8.2.4506: "pattern not found" for :global is not an error message

Problem:    "pattern not found" for :global is not an error message.
Solution:   In Vim9 script make this an actual error, so that try/catch can be
            used as expected.

src/version.c

@@ -754,6 +754,8 @@ static char *(features[]) =
 
 static int included_patches[] =
 {   /* Add new patch number below this line */
+/**/
+    4506,
 /**/
     4505,
 /**/