Update dependency puppeteer to v2

Created by: renovate[bot]

This PR contains the following updates:

Package	Type	Update	New value	References	Sourcegraph
puppeteer	devDependencies	major	2.0.0	source

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Release Notes

GoogleChrome/puppeteer

v2.0.0

Compare Source

Big changes

• Chromium 79.0.3942.0 (r706915)
• Puppeteer now requires Node.js v8+; Node.js v6 is no longer supported
• page.screenshot now clips elements to the viewport (#​5080)
• New APIs:
  • page.emulateTimezone(timezoneId)
  • page.emulateMediaType(type) (superseding the old page.emulateMedia(type) API)
  • page.emulateMediaFeatures(features)

API changes

• New API: page.emulateTimezone(timezoneId) (#​4949)
• New API: page.emulateMediaType(type) (#​5012)
• Deprecated API: page.emulateMedia(type) is now obsolete. Use page.emulateMediaType(type) instead. (#​5012)
• New API: page.emulateMediaFeatures(features) (#​5012)

Raw notes

aa24697 - chore: mark version v2.0.0 (#​5078) 360c1b4 - test: add page.screenshot viewport clipping test (#​5079) 7f3e372 - docs(api): improve page.waitFor docs for the options object (#​5021) 8132b39 - test: remove duplicate code from an example (#​5072) 1248a19 - feat(api): add page.emulateTimezone(timezoneId) (#​4949) a86363f - feat(api): add page.emulateMedia{Type,Features} (#​5012) 06dbb72 - chore: use map instead of plain object (#​5068) 81d2600 - feat(chromium): roll Chromium to r705776 (#​5058) 3773229 - fix: avoid unnecessary zero-delays in input code (#​4934) 11ff374 - chore: drop Node.js v6 support (#​5045) c0ba8f9 - docs(troubleshooting): update Alpine Chromium versions (#​4980) 2506169 - docs(contributing): mention manual docs/api updates (#​5023) 83c327a - docs(readme): correct Slack link 4c62e09 - fix(comment): fix typo in Launcher.js (#​4959) 7dbb108 - docs(api): list Chromium version for Puppeteer v1.20.0 (#​5015) 5b34028 - chore: bump https-proxy-agent to mitigate a security issue (#​5016) dc57d03 - docs(api): clarify type method examples (#​5010) fff2737 - doc(contributing): clarify release instructions (#​4940) 387a532 - chore: bump version to v1.20.0-post (#​4939)

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