Bump pytest from 4.3.0 to 4.4.1

Bumps [pytest](https://github.com/pytest-dev/pytest) from 4.3.0 to 4.4.1.
- [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/4.3.0...4.4.1)

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

Pipfile.lock

@@ -626,11 +626,11 @@
         },
         "pytest": {
             "hashes": [
-                "sha256:067a1d4bf827ffdd56ad21bd46674703fce77c5957f6c1eef731f6146bfcef1c",
-                "sha256:9687049d53695ad45cf5fdc7bbd51f0c49f1ea3ecfc4b7f3fde7501b541f17f4"
+                "sha256:3773f4c235918987d51daf1db66d51c99fac654c81d6f2f709a046ab446d5e5d",
+                "sha256:b7802283b70ca24d7119b32915efa7c409982f59913c1a6c0640aacf118b95f5"
             ],
             "index": "pypi",
-            "version": "==4.3.0"
+            "version": "==4.4.1"
         },
         "pytest-cov": {
             "hashes": [

requirements-dev.txt

@@ -14,7 +14,7 @@ psutil==5.6.1
 py==1.8.0
 pytest-cov==2.6.1
 pytest-redis==1.3.2
-pytest==4.3.0
+pytest==4.4.1
 redis==3.2.0
 requests==2.21.0
 six==1.12.0