Publify 9.2.8

This release fixes several security issues:

• Disallow comments on draft articles #1048
• Disallow images in comments #1054
• Hide bodies of password-protected articles in search results #1057
• Do not create article meta description for password-protected articles #1061

Additionally, it includes the following changes:

• Clean up Feedback validation #1051
• Bump mimimum puma and Rails versions #1050
• Fix password reset process #1055
• Fix password protected article reveal #1049
• Provide correct article_id input in bulkops form #1058
• Bump minimum required Rails version #1062