[Snyk] Security upgrade webpack-dev-server from 3.11.2 to 4.7.3#196

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snyk-fix-8f661ba4b0efa201ca3f30d1d4fa8e92dizzydaizy/angular-cli:snyk-fix-8f661ba4b0efa201ca3f30d1d4fa8e92Copy head branch name to clipboard