Pin werkzeug before the 2.1 release
Pin werkzeug before the 2.1 release

werkzeug 2.1 breaks our BaseResponse imports
cmu-delphi/delphi-epidata,cmu-delphi/delphi-epidata,cmu-delphi/delphi-epidata,cmu-delphi/delphi-epidata,cmu-delphi/delphi-epidata,cmu-delphi/delphi-epidata