patch 9.0.0726: looping over list of lists works in script, not in function

Problem:    Looping over list of lists and changing the list contents works in
            Vim9 script, not in a compiled function.
Solution:   Mark the loop variable final instead of const. (closes #11347)
diff --git a/src/version.c b/src/version.c
index aa5ca67..251ece7 100644
--- a/src/version.c
+++ b/src/version.c
@@ -700,6 +700,8 @@
 static int included_patches[] =
 {   /* Add new patch number below this line */
 /**/
+    726,
+/**/
     725,
 /**/
     724,