patch 8.2.1357: Vim9: cannot assign to / register

Problem:    Vim9: cannot assign to / register.
Solution:   Adjust check for assignment.
diff --git a/src/version.c b/src/version.c
index b04f4fe..a905979 100644
--- a/src/version.c
+++ b/src/version.c
@@ -755,6 +755,8 @@
 static int included_patches[] =
 {   /* Add new patch number below this line */
 /**/
+    1357,
+/**/
     1356,
 /**/
     1355,