Bump pytest from 5.0.0 to 5.1.1

Bumps [pytest](https://github.com/pytest-dev/pytest) from 5.0.0 to 5.1.1.
- [Release notes](https://github.com/pytest-dev/pytest/releases)
- [Changelog](https://github.com/pytest-dev/pytest/blob/master/CHANGELOG.rst)
- [Commits](https://github.com/pytest-dev/pytest/compare/5.0.0...5.1.1)

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

Pipfile.lock

@@ -578,11 +578,11 @@
         },
         "pytest": {
             "hashes": [
-                "sha256:2878de8ae1c79a62c012da6186b88ff0562ea96ce29c4208d2a9b11d9f607df1",
-                "sha256:95b700cf21ed5b7e91bce7a6b5a573b2e3ef7b3643d00f681d8f9c4672f9fbdf"
+                "sha256:95b1f6db806e5b1b5b443efeb58984c24945508f93a866c1719e1a507a957d7c",
+                "sha256:c3d5020755f70c82eceda3feaf556af9a341334414a8eca521a18f463bcead88"
             ],
             "index": "pypi",
-            "version": "==5.0.0"
+            "version": "==5.1.1"
         },
         "pytest-cov": {
             "hashes": [

requirements-dev.txt

@@ -17,7 +17,7 @@ py==1.8.0
 pyparsing==2.4.2
 pytest-cov==2.7.1
 pytest-redis==1.3.2
-pytest==5.0.0
+pytest==5.1.1
 redis==3.2.1
 requests==2.22.0
 six==1.12.0