The registry where the Package Manager might find this package.
This value always returns a registry, even if the package's source is not PackageSource.Registry (such as an embedded package or a Git dependency). In that case, this value is set to the closest registry match even if the package isn't actually on that registry. For example, if your project uses a scoped registry with the com.example.myscope scope, and your embedded package is named com.example.myscope.mypackage, this property will be the RegistryInfo from the matching scoped registry.
For more information, see Managing scoped registries for a project.