patch 8.2.2780: Vim9: for loop over blob doesn't work

Problem:    Vim9: for loop over blob doesn't work.
Solution:   Make it work.
diff --git a/src/version.c b/src/version.c
index 12a51c9..c3e2ea8 100644
--- a/src/version.c
+++ b/src/version.c
@@ -751,6 +751,8 @@
 static int included_patches[] =
 {   /* Add new patch number below this line */
 /**/
+    2780,
+/**/
     2779,
 /**/
     2778,