Read Manifest Lists from Database

Affected Route

GET /v2/<name>/manifests/<reference>

API Docs: https://gitlab.com/gitlab-org/container-registry/-/blob/release/2.9-gitlab/docs/spec/api.md#get-manifest

Detailed Handler Operations

https://gitlab.com/gitlab-org/container-registry/-/blob/database/registry/handlers/manifests.go#L87