Bump pytest from 4.4.1 to 4.6.1

Bumps [pytest](https://github.com/pytest-dev/pytest) from 4.4.1 to 4.6.1.
- [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/4.4.1...4.6.1)

Pipfile.lock

@@ -511,6 +511,13 @@
             "markers": "python_version > '2.7'",
             "version": "==7.0.0"
         },
+        "packaging": {
+            "hashes": [
+                "sha256:0c98a5d0be38ed775798ece1b9727178c4469d9c3b4ada66e8e6b7849f8732af",
+                "sha256:9e1cbf8c12b1f1ce0bb5344b8d7ecf66a6f8a6e91bcb0c84593ed6d3ab5c4ab3"
+            ],
+            "version": "==19.0"
+        },
         "pluggy": {
             "hashes": [
                 "sha256:0825a152ac059776623854c1543d65a4ad408eb3d33ee114dff91e57ec6ae6fc",
@@ -546,13 +553,20 @@
             ],
             "version": "==1.8.0"
         },
+        "pyparsing": {
+            "hashes": [
+                "sha256:1873c03321fc118f4e9746baf201ff990ceb915f433f23b395f5580d1840cb2a",
+                "sha256:9b6323ef4ab914af344ba97510e966d64ba91055d6b9afa6b30799340e89cc03"
+            ],
+            "version": "==2.4.0"
+        },
         "pytest": {
             "hashes": [
-                "sha256:3773f4c235918987d51daf1db66d51c99fac654c81d6f2f709a046ab446d5e5d",
-                "sha256:b7802283b70ca24d7119b32915efa7c409982f59913c1a6c0640aacf118b95f5"
+                "sha256:8304c2f6466cf48f24631263d60320a1996668acfd659d8fa5e5e8f28129e1cd",
+                "sha256:b68d84c7c01073ddf2a918a7504ab73849d52483d9f1f15f3875487011d09f71"
             ],
             "index": "pypi",
-            "version": "==4.4.1"
+            "version": "==4.6.1"
         },
         "pytest-cov": {
             "hashes": [
@@ -608,6 +622,13 @@
             "index": "pypi",
             "version": "==0.18"
         },
+        "wcwidth": {
+            "hashes": [
+                "sha256:3df37372226d6e63e1b1e1eda15c594bca98a22d33a23832a90998faa96bc65e",
+                "sha256:f4ebe71925af7b40a864553f761ed559b43544f8f71746c2d756c7fe788ade7c"
+            ],
+            "version": "==0.1.7"
+        },
         "zipp": {
             "hashes": [
                 "sha256:8c1019c6aad13642199fbe458275ad6a84907634cc9f0989877ccc4a2840139d",

requirements-dev.txt

@@ -9,16 +9,19 @@ idna==2.8
 importlib-metadata==0.17
 mirakuru==1.1.0
 more-itertools==7.0.0 ; python_version > '2.7'
+packaging==19.0
 pluggy==0.12.0
 port-for==0.4
 psutil==5.6.2
 py==1.8.0
+pyparsing==2.4.0
 pytest-cov==2.6.1
 pytest-redis==1.3.2
-pytest==4.4.1
+pytest==4.6.1
 redis==3.2.1
 requests==2.21.0
 six==1.12.0
 urllib3==1.24.3
 versioneer==0.18
+wcwidth==0.1.7
 zipp==0.5.1