build(deps): bump pytest from 4.4.0 to 4.6.2

dependabot-preview[bot] · web-flow · commit df455aa29d7b · 2019-06-04T13:15:59.000Z
Bumps [pytest](https://github.com/pytest-dev/pytest) from 4.4.0 to 4.6.2. - [Release notes](https://github.com/pytest-dev/pytest/releases) - [Changelog](https://github.com/pytest-dev/pytest/blob/master/CHANGELOG.rst) - [Commits](pytest-dev/pytest@4.4.0...4.6.2)
diff --git a/test-requirements.txt b/test-requirements.txt
@@ -1,3 +1,3 @@
 -r build-requirements.txt
-pytest==4.4.0
+pytest==4.6.2
 coverage==4.5.3
