patch 8.2.0716: Vim9: another memory leak

Problem:    Vim9: another memory leak.
Solution:   Clear typval when failing.
diff --git a/src/version.c b/src/version.c
index 7434486..c8361eb 100644
--- a/src/version.c
+++ b/src/version.c
@@ -747,6 +747,8 @@
 static int included_patches[] =
 {   /* Add new patch number below this line */
 /**/
+    716,
+/**/
     715,
 /**/
     714,