4.20.2 - Various updates and fixes

Various updates and fixes

• Fix issue with mobile mode and user agents
  --> This resolves #2181
• Improve "driver.highlight(selector)" functionality
  --> This resolves #2182
• Fix issue that caused "PytestAssertRewriteWarning"
  --> This resolves #2183
• Add UC Mode customization options
  --> This resolves #2186
• Refresh optional Python dependencies

What's Changed

• Various updates and fixes by @mdmintz in #2187

Full Changelog: v4.20.1...v4.20.2