Build(deps): Bump django from 3.1.7 to 3.1.8 (#429)

Bumps [django](https://github.com/django/django) from 3.1.7 to 3.1.8.
- [Release notes](https://github.com/django/django/releases)
- [Commits](https://github.com/django/django/compare/3.1.7...3.1.8)

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

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

Pipfile

@@ -19,7 +19,7 @@ cssselect = "~=1.1.0"
 cssutils = "~=1.0.2"
 dj-database-url = "~=0.5.0"
 dj-static = "~=0.0.6"
-Django = "~=3.1.5"
+Django = "~=3.1.8"
 django-debug-toolbar = "~=3.2"
 django-filter = "~=2.4.0"
 django-ical = "~=1.7.1"

Pipfile.lock

@@ -1,7 +1,7 @@
 {
     "_meta": {
         "hash": {
-            "sha256": "f3d7d90065a20312da26942235c698b272c433ef47aedf31586c88c5d53ed97f"
+            "sha256": "34b241da450c9fc21598b7ac86444d468386932b3218582df086917edf9056f5"
         },
         "pipfile-spec": 6,
         "requires": {
@@ -176,11 +176,11 @@
         },
         "django": {
             "hashes": [
-                "sha256:32ce792ee9b6a0cbbec340123e229ac9f765dff8c2a4ae9247a14b2ba3a365a7",
-                "sha256:baf099db36ad31f970775d0be5587cc58a6256a6771a44eb795b554d45f211b8"
+                "sha256:c348b3ddc452bf4b62361f0752f71a339140c777ebea3cdaaaa8fdb7f417a862",
+                "sha256:f8393103e15ec2d2d313ccbb95a3f1da092f9f58d74ac1c61ca2ac0436ae1eac"
             ],
             "index": "pypi",
-            "version": "==3.1.7"
+            "version": "==3.1.8"
         },
         "django-debug-toolbar": {
             "hashes": [
@@ -399,31 +399,31 @@
         },
         "pikepdf": {
             "hashes": [
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-                "sha256:2ff36accb7c3d1c3e5594f33dc08f1fb8c5ecc9b53adf9741a6ac06b0d35cf2c",
-                "sha256:3b91abe907f790e9eac9cd16c77325fed068c4b13e3ed612eb747949991e89a6",
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-                "sha256:e1d661a917857c1290c5525f1362f5827cda9a44cf0ea6f1fbe451227c816916",
-                "sha256:ed6fb3cc7b26bf9e1f1f38b62bfbceeb612264b26c8a36b576d4e5a454b63030"
+                "sha256:14a93f2b61adc975453dfc9edf3335be704732a8750a009ba3d12913ff043abe",
+                "sha256:25ba3bf96eae3a7c897db5bf6a60b26ebde1c161145af73a044950901b754bcb",
+                "sha256:29742273f80e75c48e700c5438636fe78a856e1706e353ea57715732fb75fcd6",
+                "sha256:3790ed5b9d0db8c8bd28d96cb10b91649179eac04873ed23e6dc474515892cc3",
+                "sha256:3a76702b12f78abe591a6270756a56225a63a26c5a00aad8bc3ffd8680178ab2",
+                "sha256:56ce22cd134c96035abf984aa167a16e7c658c3ccc0cd626a7002f911eba7452",
+                "sha256:578e80adcd4703b752c381517853a074633baa219be4bd36d6752fb742a0f8b4",
+                "sha256:5b286e9862a21bbe9dfb0da827818f710a303d9b78f821710c37e8059839c7da",
+                "sha256:6b12c8835f52d07cb68f30d115e1361cd1143f1aa2c70f49ded6d69d9c4fcdd2",
+                "sha256:6e6dd17783c6cf038b179dcf662982d1cca891a3e30232aec0221cc69821b7f1",
+                "sha256:7e4e7e53781d85a609bdf899d585a39a69e9eedf2b9ac75261685a1aff0072ea",
+                "sha256:810488f80a1d93652498222f9d1391d9287b3b842971d7a8878e69a287c2476f",
+                "sha256:85ab867102d7c2182acf852c61ca60c90790bfbb4a939dc096054d904318ba37",
+                "sha256:8babd800331978d20d82ed1494868d15f5b953266c2b943a7d34e4826016e0b8",
+                "sha256:94f20e08cdfcba011440204fd9df381af1c423a9888dfd3287b66d9e7e1421bf",
+                "sha256:9d4a1cc8da1860d8772e831b03ea05386ae6a805718cd8621de736725d52a901",
+                "sha256:9f67e2c57413ac8be4eec5344c2bcaeb1a18c59fe348afd589d9b95bd4dfc077",
+                "sha256:b4c64ddc8fe9b11dc52f81d38076bd560ce97abf4695151d2eab390ae760fcac",
+                "sha256:b5d4431e77f32fd1edc10d214db89b33f2c7f8ceb7152a6651192ef90945db17",
+                "sha256:d3a0cf2dcc10cd7a7b877e955cfac7ddee6050860a39375f46218f7f1c02e903",
+                "sha256:dd551d5ff0e4c95537a366fb2281152c7293e60d60bf6ba909faba7d0ee669ad",
+                "sha256:dea790ae9809ab0ed0f5e32c938d36441f5ab3e74a884692ce84902e8ed1187b",
+                "sha256:fe47949abbf9f67416e545b0c61c8e75546f1ad8f4cfbe5ee608824258cdaa3e"
             ],
-            "version": "==2.11.0"
+            "version": "==2.11.1"
         },
         "pillow": {
             "hashes": [