Add redis dependency

Pipfile

@@ -15,6 +15,7 @@ celery = "*"
 kombu = "*"
 pytz = "*"
 jinja2 = "*"
+redis = "*"
 
 [requires]
 python_version = "3.7"

Pipfile.lock

@@ -1,7 +1,7 @@
 {
     "_meta": {
         "hash": {
-            "sha256": "4420e939c194bdd75c095801149c37d0eb28c9e3010e20e701ee8d95e81b0a52"
+            "sha256": "19baf5d6f093d84ef837123087771dcd28d324a4b12e901f520374272ebbee75"
         },
         "pipfile-spec": 6,
         "requires": {
@@ -116,6 +116,14 @@
             "index": "pypi",
             "version": "==2019.3"
         },
+        "redis": {
+            "hashes": [
+                "sha256:0dcfb335921b88a850d461dc255ff4708294943322bd55de6cfd68972490ca1f",
+                "sha256:b205cffd05ebfd0a468db74f0eedbff8df1a7bfc47521516ade4692991bb0833"
+            ],
+            "index": "pypi",
+            "version": "==3.4.1"
+        },
         "vine": {
             "hashes": [
                 "sha256:133ee6d7a9016f177ddeaf191c1f58421a1dcc6ee9a42c58b34bed40e1d2cd87",
@@ -125,10 +133,10 @@
         },
         "zipp": {
             "hashes": [
-                "sha256:12248a63bbdf7548f89cb4c7cda4681e537031eda29c02ea29674bc6854460c2",
-                "sha256:7c0f8e91abc0dc07a5068f315c52cb30c66bfbc581e5b50704c8a2f6ebae794a"
+                "sha256:aa36550ff0c0b7ef7fa639055d797116ee891440eac1a56f378e2d3179e0320b",
+                "sha256:c599e4d75c98f6798c509911d08a22e6c021d074469042177c8c86fb92eefd96"
             ],
-            "version": "==3.0.0"
+            "version": "==3.1.0"
         }
     },
     "develop": {