Update pytest from 3.6.0 to 3.6.1 (#299)

pyup.io bot · jettify · commit 3cd615b0853c · 2018-06-19T00:26:35.000+03:00
diff --git a/requirements-dev.txt b/requirements-dev.txt
@@ -2,7 +2,7 @@ coverage==4.5.1
 flake8==3.5.0
 ipdb==0.11
 ipython==6.4.0
-pytest==3.6.0
+pytest==3.6.1
 pytest-cov==2.5.1
 pytest-sugar==0.9.1
 PyMySQL>=0.7.5
