build(deps): bump waitress from 1.4.3 to 2.1.1 in /backend#4

dependabot[bot] wants to merge 1 commit intomasterChannelstream/channelstream_landing:masterfrom

dependabot/pip/backend/waitress-2.1.1Channelstream/channelstream_landing:dependabot/pip/backend/waitress-2.1.1Copy head branch name to clipboard