Version 3.15.0

What's Changed

• Bump nokogiri from 1.13.4 to 1.13.6 by @dependabot in #68
• Bump tzinfo from 1.2.9 to 1.2.10 by @dependabot in #70
• Bump nokogiri from 1.13.6 to 1.13.9 by @dependabot in #71
• Updates for schema.org 15.0.

Full Changelog: 3.14.1...3.15.0