Update gunicorn from 20.0.4 to 20.1.0 (#92)
Update gunicorn from 20.0.4 to 20.1.0 (#92)

Co-authored-by: James Rutherford <9ef0a08f62baacc212899dcff55dcfd56dda921c@users.noreply.github.com>
jimr/Showcase,jimr/Showcase