patch 8.0.0233: paste test fails in the GUI

Problem:    The paste test fails if the GUI is being used.
Solution:   Skip the test in the GUI.
diff --git a/src/version.c b/src/version.c
index c7ef2be..1b78243 100644
--- a/src/version.c
+++ b/src/version.c
@@ -765,6 +765,8 @@
 static int included_patches[] =
 {   /* Add new patch number below this line */
 /**/
+    233,
+/**/
     232,
 /**/
     231,