chore: suppress deprecation warning for urllib3[secure] extra (ietf-tools#4352)

Author: jennifer-richards

ietf/settings.py

@@ -13,6 +13,7 @@
 from typing import Any, Dict, List, Tuple # pyflakes:ignore
 
 warnings.simplefilter("always", DeprecationWarning)
+warnings.filterwarnings("ignore", message="'urllib3\[secure\]' extra is deprecated")
 warnings.filterwarnings("ignore", message="The logout\(\) view is superseded by")
 warnings.filterwarnings("ignore", message="Report.file_reporters will no longer be available in Coverage.py 4.2", module="coverage.report")
 warnings.filterwarnings("ignore", message="{% load staticfiles %} is deprecated")