Assign "not_owned" controllers to existing feature category

Proposal

A few classes still have the ~"group::not_owned" feature category assign to them, they're listed below. They should instead be assigned an existing group label.

In theory, it would be preferable to have all eligible classes assigned. Some of these unassigned controllers have been performing fairly well, like Api::PaymentMethodsController or TrialsController. Assigning them to a group would increase the Apdex score of this group.

List of "not_owned" classes

Name	New feature category to assign
Zuora::Base
Zuora:Operations::InvoiceCollect
Quality::TestAccountCleanupCronJob
TrialsController
Api::V1::OauthAppIdController
Api::PaymentMethodsController
GraphqlController
SubscriptionsController