patch 9.1.0661: the zip plugin is not tested.

Problem:  the zip plugin is not tested.
Solution: include tests (Damien)

closes: #15411

Signed-off-by: Damien <141588647+xrandomname@users.noreply.github.com>
Signed-off-by: Christian Brabandt <cb@256bit.org>
diff --git a/src/version.c b/src/version.c
index 13167ab..460afa9 100644
--- a/src/version.c
+++ b/src/version.c
@@ -705,6 +705,8 @@
 static int included_patches[] =
 {   /* Add new patch number below this line */
 /**/
+    661,
+/**/
     660,
 /**/
     659,