exclude broken pytest 3.3.0 release

https://github.com/pytest-dev/pytest/issues/2957
(cherry picked from commit 43184f2dd12a33b4ee462918e8c1a5eb07355f88)

requirements.d/development.txt

@@ -3,7 +3,7 @@ setuptools_scm
 pip
 virtualenv
 tox
-pytest
+pytest!=3.3.0
 pytest-xdist
 pytest-cov
 pytest-benchmark