Merge pull request #16 from MarkusRosen/dependabot/pip/waitress-2.1.1

Bump waitress from 1.4.4 to 2.1.1

Author: MarkusRosen

requirements.txt

@@ -68,6 +68,6 @@ tqdm==4.48.0
 typed-ast==1.4.1
 typing-extensions==3.7.4.2
 urllib3==1.26.5
-waitress==1.4.4
+waitress==2.1.1
 websocket-client==0.57.0
 Werkzeug==1.0.1