Update dependencies.

Author: toddbirchard

gunicorn.conf.py

@@ -29,4 +29,4 @@
     loglevel = "trace"
     dogstatsd_tags = "env:prod,service:flasklogin,language:python"
 else:
-    raise ValueError(f"Unknown environment provided: `{ENVIRONMENT}`. Must be `development` or `production`.")
+    raise ValueError(f"Unknown environment provided: `{ENVIRONMENT}`. Must be `development` or `production`.")