v2.4.9

What’s new:

🚀 Features

• Add blog archive page (#426) @Soroosh
• Mermaid Update (#427) @sylhare
• Make date format configurable (#423) @Soroosh

🧰 Maintenance

• Bump nokogiri from 1.15.5 to 1.16.2 in /.github/workflows (#429) @dependabot
• Use new checkout action (#428) @sylhare
• Drop support for ruby < 2.7.4 (#422) @sylhare