Delete all resources owned by the controller when the Flux module is disabled
This issue is a follow-up of #472 (closed). Currently, when opting-out of the provided Flux integration, the agent will not delete any of the resources, which were created for the integration (at the point of writing the issue, this would be a Receiver and a Secret). As it is difficult to select the resources reliably, it would be more fitting to implement this as a follow-up, after the resources have been labeled appropriately (see !1348 (comment 1790173162) for more information).