patch 8.0.0783: job of terminal may be freed too early

Problem:    Job of terminal may be freed too early.
Solution:   Increment job refcount. (Yasuhiro Matsumoto)
diff --git a/src/version.c b/src/version.c
index da00188..1b13fd3 100644
--- a/src/version.c
+++ b/src/version.c
@@ -770,6 +770,8 @@
 static int included_patches[] =
 {   /* Add new patch number below this line */
 /**/
+    783,
+/**/
     782,
 /**/
     781,