patch 8.2.4226: filter-map test fails

Problem:    Filter-map test fails.
Solution:   Only reject number argument in Vim9 script.
diff --git a/src/version.c b/src/version.c
index 7fbafc6..576c06c 100644
--- a/src/version.c
+++ b/src/version.c
@@ -751,6 +751,8 @@
 static int included_patches[] =
 {   /* Add new patch number below this line */
 /**/
+    4226,
+/**/
     4225,
 /**/
     4224,