Geotrek-admin 2.110.0

What's Changed

✨ New features

• Add schema_randonnee parser (refs #4022) by @justinefricou in #4349

📝 Documentation

• New doc style with sphinx-immaterial. Harmonize with Geotrek-rando by @submarcos in #4358

✅ Tests

• Fix flaky tests by @submarcos in #4348

🏗️ Maintenance

• Bump django-colorfield from 0.10.1 to 0.11.0 by @dependabot in #4351
• Bump btrees from 6.0 to 6.1 by @dependabot in #4350
• Bump easy-thumbnails from 2.8.5 to 2.9 by @dependabot in #4247

Full Changelog: 2.109.3...2.110.0