patch 8.2.0780: libvterm code lags behind the upstream version

Problem:    Libvterm code lags behind the upstream version.
Solution:   Include revisions 724 - 726.
diff --git a/src/version.c b/src/version.c
index 8e91aea..5946964 100644
--- a/src/version.c
+++ b/src/version.c
@@ -747,6 +747,8 @@
 static int included_patches[] =
 {   /* Add new patch number below this line */
 /**/
+    780,
+/**/
     779,
 /**/
     778,