patch 8.2.0303: TermChanged test fails in the GUI

Problem:    TermChanged test fails in the GUI.
Solution:   Skip the test when running the GUI.
diff --git a/src/version.c b/src/version.c
index 96ef2c1..97669c0 100644
--- a/src/version.c
+++ b/src/version.c
@@ -739,6 +739,8 @@
 static int included_patches[] =
 {   /* Add new patch number below this line */
 /**/
+    303,
+/**/
     302,
 /**/
     301,