Bump flake8-bugbear from 20.1.4 to 20.11.1 (#844)

Bumps [flake8-bugbear](https://github.com/PyCQA/flake8-bugbear) from 20.1.4 to 20.11.1.

Pipfile.lock

@@ -201,11 +201,11 @@
         },
         "flake8-bugbear": {
             "hashes": [
-                "sha256:a3ddc03ec28ba2296fc6f89444d1c946a6b76460f859795b35b77d4920a51b63",
-                "sha256:bd02e4b009fb153fe6072c31c52aeab5b133d508095befb2ffcf3b41c4823162"
+                "sha256:528020129fea2dea33a466b9d64ab650aa3e5f9ffc788b70ea4bc6cf18283538",
+                "sha256:f35b8135ece7a014bc0aee5b5d485334ac30a6da48494998cc1fabf7ec70d703"
             ],
             "index": "pypi",
-            "version": "==20.1.4"
+            "version": "==20.11.1"
         },
         "flake8-builtins": {
             "hashes": [
@@ -791,10 +791,10 @@
         },
         "virtualenv": {
             "hashes": [
-                "sha256:6af42359fbb33a6c7eab4d3246524b96fd9d8e07e7141b7a65998f96e28b2c57",
-                "sha256:fd4147c5ba3f694e2e4fc3c767407dc2226899623bb9b49c2f15637c2ee335b3"
+                "sha256:07cff122e9d343140366055f31be4dcd61fd598c69d11cd33a9d9c8df4546dd7",
+                "sha256:e0aac7525e880a429764cefd3aaaff54afb5d9f25c82627563603f5d7de5a6e5"
             ],
-            "version": "==20.2.0"
+            "version": "==20.2.1"
         },
         "virtualenv-clone": {
             "hashes": [