Fixes if case to render author info in releases

What does this MR do?

Fixes if check for the author in releases, causing the author only to be rendered when there was no author 🤦

This does not have a changelog entry because it has not been released yet, releases page will only be released in %11.7

Does this MR meet the acceptance criteria?

• Tests added for this feature/bug
• Conforms to the code review guidelines
• Conforms to the merge request performance guidelines
• Conforms to the style guides