patch 8.2.0771: Vim9: cannot call a compiled closure from not compiled code

Problem:    Vim9: cannot call a compiled closure from not compiled code.
Solution:   Pass funcexe to call_user_func().
diff --git a/src/version.c b/src/version.c
index 2776504..c369a71 100644
--- a/src/version.c
+++ b/src/version.c
@@ -747,6 +747,8 @@
 static int included_patches[] =
 {   /* Add new patch number below this line */
 /**/
+    771,
+/**/
     770,
 /**/
     769,