patch 8.2.2770: Vim9: type of loop variable is not used

Problem:    Vim9: type of loop variable is not used.
Solution:   Parse and check the variable type. (closes #8107)
diff --git a/src/version.c b/src/version.c
index 8c558b2..8cbe3d3 100644
--- a/src/version.c
+++ b/src/version.c
@@ -751,6 +751,8 @@
 static int included_patches[] =
 {   /* Add new patch number below this line */
 /**/
+    2770,
+/**/
     2769,
 /**/
     2768,