Bump webpack-cli from 4.4.0 to 4.7.0#972

dependabot-preview[bot] wants to merge 1 commit intomasterimprobable-eng/grpc-web:masterfrom

dependabot/npm_and_yarn/webpack-cli-4.7.0improbable-eng/grpc-web:dependabot/npm_and_yarn/webpack-cli-4.7.0Copy head branch name to clipboard