16.2.0-beta1

What's Changed

• Only build docs when files in the docs path change by @Grotax in #1524
• Add changelog and DCO notice to CONTRIBUTING.md by @danielrheinbay in #1521
• Bump squizlabs/php_codesniffer from 3.6.0 to 3.6.1 by @dependabot in #1530
• Bump jasmine-core from 3.9.0 to 3.10.0 in /js by @dependabot in #1531
• update to maintained readability repo by @Grotax in #1532
• Bump actions/checkout from 2.3.4 to 2.3.5 by @dependabot in #1536
• Download feed logos via guzzle to have better error handling by @Grotax in #1533
• Release 16.2.0-beta1 by @Grotax in #1539

Full Changelog: 16.1.0...16.2.0-beta1