Explicitly pin versions of packages required

Pipfile

@@ -27,11 +27,11 @@ test = "bash ./scripts/test.sh"
 allow_prereleases = true
 
 [packages]
-apscheduler = "*"
-pygithub = "*"
-todoist-python = "*"
-sentry-sdk = "*"
-python-dateutil = "*"
-starlette = "*"
-uvicorn = "*"
-starlette-auth-toolkit = "*"
+apscheduler = "==3.6.1"
+pygithub = "==1.43.8"
+todoist-python = "==8.0.0"
+sentry-sdk = "==0.11.2"
+python-dateutil = "==2.8.0"
+starlette = "==0.12.8"
+uvicorn = "==0.8.6"
+starlette-auth-toolkit = "==0.5.0"

Pipfile.lock

@@ -1,7 +1,7 @@
 {
     "_meta": {
         "hash": {
-            "sha256": "57eb2cb3c7115a01ad13d8eb1a030f29ee76e1985c36ff5511817dbf47b48696"
+            "sha256": "639b6ee8ba2e4692915576c1f76904dae0a808f4ab60f578646ccab8c23acfdd"
         },
         "pipfile-spec": 6,
         "requires": {