Bump gunicorn from 20.1.0 to 22.0.0 in /services/web#16

dependabot[bot] wants to merge 1 commit intomaintestdrivenio/flask-on-docker:mainfrom

dependabot/pip/services/web/gunicorn-22.0.0testdrivenio/flask-on-docker:dependabot/pip/services/web/gunicorn-22.0.0Copy head branch name to clipboard