Update requirements.txt

Author: rarmitag

queue_services/entity-filer/requirements.txt

@@ -15,7 +15,7 @@ jsonschema==4.19.0
 nest_asyncio==1.6.0
 pycountry==20.7.3
 pyrsistent==0.17.3
-python-dateutil==2.8.1
+python-dateutil>=2.7
 python-dotenv==0.17.1
 sentry-sdk==1.20.0
 six==1.15.0