build(deps): bump django from 3.1.4 to 3.1.5 (#451)

Bumps [django](https://github.com/django/django) from 3.1.4 to 3.1.5.
- [Release notes](https://github.com/django/django/releases)
- [Commits](https://github.com/django/django/compare/3.1.4...3.1.5)

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

Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

Pipfile.lock

@@ -74,17 +74,18 @@
         },
         "boto3": {
             "hashes": [
-                "sha256:05796ba6c65f79214ea61becae5126d5c924eed8a11874bc5536d611deabbe47"
+                "sha256:05796ba6c65f79214ea61becae5126d5c924eed8a11874bc5536d611deabbe47",
+                "sha256:50c2475cc6c38f7ff24c3e0ca8f7eaf787ce740499198043e05e6f13ac2e919f"
             ],
             "index": "pypi",
             "version": "==1.16.47"
         },
         "botocore": {
             "hashes": [
-                "sha256:15584a86d6cb1f94ea785e8d3c98faeff8ddd0105356e1c106118d9ac12fa891",
-                "sha256:4989ff6ca4104f641d966f6bb2f3c4207f1a7a8d879b2e21224c7713dd9dc9b8"
+                "sha256:549aa9619b51c5b103c7bb906497f60824576366aa4e3642b4e57f9f53a06f7d",
+                "sha256:b954c596f8bdf31d5fdf1eff8a2296bde8094e1e22961a79b83bb62ddeba8a49"
             ],
-            "version": "==1.19.47"
+            "version": "==1.19.48"
         },
         "cachetools": {
             "hashes": [
@@ -264,11 +265,11 @@
         },
         "django": {
             "hashes": [
-                "sha256:5c866205f15e7a7123f1eec6ab939d22d5bde1416635cab259684af66d8e48a2",
-                "sha256:edb10b5c45e7e9c0fb1dc00b76ec7449aca258a39ffd613dbd078c51d19c9f03"
+                "sha256:2d78425ba74c7a1a74b196058b261b9733a8570782f4e2828974777ccca7edf7",
+                "sha256:efa2ab96b33b20c2182db93147a0c3cd7769d418926f9e9f140a60dca7c64ca9"
             ],
             "index": "pypi",
-            "version": "==3.1.4"
+            "version": "==3.1.5"
         },
         "django-cors-middleware": {
             "hashes": [
@@ -1372,11 +1373,11 @@
         },
         "django": {
             "hashes": [
-                "sha256:5c866205f15e7a7123f1eec6ab939d22d5bde1416635cab259684af66d8e48a2",
-                "sha256:edb10b5c45e7e9c0fb1dc00b76ec7449aca258a39ffd613dbd078c51d19c9f03"
+                "sha256:2d78425ba74c7a1a74b196058b261b9733a8570782f4e2828974777ccca7edf7",
+                "sha256:efa2ab96b33b20c2182db93147a0c3cd7769d418926f9e9f140a60dca7c64ca9"
             ],
             "index": "pypi",
-            "version": "==3.1.4"
+            "version": "==3.1.5"
         },
         "django-debug-toolbar": {
             "hashes": [