refactor(app/outbound): forward-compatible test code#3676

cratelyn merged 1 commit intomainlinkerd/linkerd2-proxy:mainfrom

kate/hyper-1.x-forward-compatible-app-outbound-http-logical-timeout-testslinkerd/linkerd2-proxy:kate/hyper-1.x-forward-compatible-app-outbound-http-logical-timeout-testsCopy head branch name to clipboard