Adds back private projects to Ci::Catalog::Listing

What does this MR do and why?

Adds back private projects to Ci::Catalog::Listing

Private projects are currently being excluded when fetching a users authorized projects. This MR will now include them. There are a number of issues that will tackle performance concerns when including private projects. These are currently being worked on and will continue work in the upcoming milestones.

Changelog: changed

MR acceptance checklist

This checklist encourages us to confirm any changes have been analyzed to reduce risks in quality, performance, reliability, security, and maintainability.

• I have evaluated the MR acceptance checklist for this MR.