Bump webpack-dev-server from 2.11.5 to 3.1.11 in /BeggarBetting.SPA#2

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dependabot/npm_and_yarn/BeggarBetting.SPA/webpack-dev-server-3.1.11klaytn-hackathon/SejongSama:dependabot/npm_and_yarn/BeggarBetting.SPA/webpack-dev-server-3.1.11Copy head branch name to clipboard