Updated channel server response breaks Rancher Desktop

[jandubois]

The resourceType field of the channel server response used to be channels, but has changed to channel sometime late last week:

$ curl --silent --fail https://update.k3s.io/v1-release/channels | jq 'del(.data)'
{
  "type": "collection",
  "links": {
    "self": "https://update.k3s.io/v1-release/channels"
  },
  "actions": {},
  "resourceType": "channel"
}

This unfortunately breaks Rancher Desktop 1.16 (the latest public release), which checks the resourceType: rancher-sandbox/rancher-desktop#7461

This means on any new installation of Rancher Desktop, as well as any time a user performs a factory reset that wipes the k3s cache, the list of available k3s versions will be empty and the user cannot enable Kubernetes.

[brandond]

Fixed by

• Return correct plural type for collections rancher/channelserver#30