patch 8.2.0286: cannot use popup_close() for a terminal popup

Problem:    Cannot use popup_close() for a terminal popup.
Solution:   Allow using popup_close(). (closes #5666)
diff --git a/src/version.c b/src/version.c
index 9dc3c6f..e17c98b 100644
--- a/src/version.c
+++ b/src/version.c
@@ -739,6 +739,8 @@
 static int included_patches[] =
 {   /* Add new patch number below this line */
 /**/
+    286,
+/**/
     285,
 /**/
     284,