Update copy-webpack-plugin from 4.5.0 to 4.5.1 in examples/polymer-cli
Update copy-webpack-plugin from 4.5.0 to 4.5.1 in examples/polymer-cli

storybooks/react-storybook,storybooks/react-storybook,rhalff/storybook,kadirahq/react-storybook,rhalff/storybook,storybooks/react-storybook,rhalff/storybook,rhalff/storybook,storybooks/storybook,storybooks/storybook,storybooks/storybook,kadirahq/react-storybook,rhalff/storybook,storybooks/storybook,rhalff/storybook,storybooks/storybook,storybooks/storybook,storybooks/react-storybook,storybooks/storybook