make note about the unpublished 3.9.0 release

RonnyPfannschmidt · RonnyPfannschmidt · commit c5bbf8ac73a7 · 2018-10-16T22:21:15.000+02:00
diff --git a/CHANGELOG.rst b/CHANGELOG.rst
@@ -29,8 +29,8 @@ Features
   "-vv").
 
 
-pytest 3.9.0 (2018-10-15)
-=========================
+pytest 3.9.0 (2018-10-15 - not published due to a release automation bug)
+=========================================================================
 
 Deprecations
 ------------
