[requires.io] dependency update on master branch (#137)

* [requires.io] dependency update

Author: glyph

test_requirements.txt

@@ -1,4 +1,4 @@
-pytest==4.2.0
-pytest-cov==2.6.1
-pytest-xdist==1.26.1
-coverage==4.5.2
+pytest==4.5.0
+pytest-cov==2.7.1
+pytest-xdist==1.28.0
+coverage==4.5.3

tox.ini

@@ -18,5 +18,5 @@ commands =
 
 [testenv:lint]
 basepython=python3.7
-deps = flake8==3.7.3
+deps = flake8==3.7.7
 commands = flake8 --max-complexity 10 hyperframe test