Resolve Puppeteer warning

[ttsukagoshi]

Puppeteer warning:

Puppeteer old Headless deprecation warning:
In the near future headless: true will default to the new Headless mode
for Chrome instead of the old Headless implementation. For more
information, please see https://developer.chrome.com/articles/new-headless/.
Consider opting in early by passing headless: "new" to puppeteer.launch()
If you encounter any bugs, please report them to https://github.com/puppeteer/puppeteer/issues/new/choose.