Refactor top 3 package managers tests to organise by endpoint level
See https://gitlab.com/gitlab-org/quality/team-tasks/-/issues/806#note_679261058
what started with npm, should be extended to Maven and NuGet
Edited by Sofia Vistas
See https://gitlab.com/gitlab-org/quality/team-tasks/-/issues/806#note_679261058
what started with npm, should be extended to Maven and NuGet