GraphQL query to get maven virtual registry details

Proposal

We added to query to get all Maven virtual registries for a group in GraphQL query to get list of all maven virtual ... (#525931 - closed)

A top-level query to fetch Maven virtual registry details by Maven Registry ID.

query {
  mavenVirtualRegistry(id: "gid://gitlab/VirtualRegistries::Packages::Maven::Registry/5"){
    id
    description
    name
    upstreams {
      id
      url
      username
      name
      registryUpstreams {
        id
        position
      }
    }
  }
}