Bump webpack-dev-server from 3.1.9 to 3.1.14 in /client#7

dependabot[bot] wants to merge 1 commit intomasterrishipr/teams:masterfrom

dependabot/npm_and_yarn/client/webpack-dev-server-3.1.14rishipr/teams:dependabot/npm_and_yarn/client/webpack-dev-server-3.1.14Copy head branch name to clipboard