build(deps): bump django from 3.0.9 to 3.1

Bumps [django](https://github.com/django/django) from 3.0.9 to 3.1.
- [Release notes](https://github.com/django/django/releases)
- [Commits](https://github.com/django/django/compare/3.0.9...3.1)

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

Pipfile.lock

@@ -162,11 +162,11 @@
         },
         "django": {
             "hashes": [
-                "sha256:96fbe04e8ba0df289171e7f6970e0ff8b472bf4f909ed9e0e5beccbac7e1dbbe",
-                "sha256:c22b4cd8e388f8219dc121f091e53a8701f9f5bca9aa132b5254263cab516215"
+                "sha256:1a63f5bb6ff4d7c42f62a519edc2adbb37f9b78068a5a862beff858b68e3dc8b",
+                "sha256:2d390268a13c655c97e0e2ede9d117007996db692c1bb93eabebd4fb7ea7012b"
             ],
             "index": "pypi",
-            "version": "==3.0.9"
+            "version": "==3.1"
         },
         "django-cors-middleware": {
             "hashes": [
@@ -1046,11 +1046,11 @@
         },
         "django": {
             "hashes": [
-                "sha256:96fbe04e8ba0df289171e7f6970e0ff8b472bf4f909ed9e0e5beccbac7e1dbbe",
-                "sha256:c22b4cd8e388f8219dc121f091e53a8701f9f5bca9aa132b5254263cab516215"
+                "sha256:1a63f5bb6ff4d7c42f62a519edc2adbb37f9b78068a5a862beff858b68e3dc8b",
+                "sha256:2d390268a13c655c97e0e2ede9d117007996db692c1bb93eabebd4fb7ea7012b"
             ],
             "index": "pypi",
-            "version": "==3.0.9"
+            "version": "==3.1"
         },
         "django-debug-toolbar": {
             "hashes": [