patch 8.2.4525: some GUI tests don't work on Athena

Problem:    Some GUI tests don't work on Athena.
Solution:   Skip tests that won't work. (Yegappan Lakshmanan, closes #9902)
diff --git a/src/version.c b/src/version.c
index 450d49b..9693ad3 100644
--- a/src/version.c
+++ b/src/version.c
@@ -751,6 +751,8 @@
 static int included_patches[] =
 {   /* Add new patch number below this line */
 /**/
+    4525,
+/**/
     4524,
 /**/
     4523,