Bump pytest-selenium from 1.15.1 to 1.16.0 (#12)

Bumps [pytest-selenium](https://github.com/pytest-dev/pytest-selenium) from 1.15.1 to 1.16.0.
- [Release notes](https://github.com/pytest-dev/pytest-selenium/releases)
- [Changelog](https://github.com/pytest-dev/pytest-selenium/blob/master/docs/news.rst)
- [Commits](pytest-dev/pytest-selenium@v1.15.1...v1.16.0)

Signed-off-by: dependabot[bot] <support@dependabot.com>

requirementsIT.txt

@@ -1,2 +1,2 @@
 pytest==4.2.1
-pytest-selenium==1.15.1
+pytest-selenium==1.16.0