Rancher provisioned/managed RKE2/K3s data-dir support

[jakefhyde]

There is currently an ongoing effort to support specifying the RKE2/K3s data-dir argument, which allows a user to change it from the default of /var/lib/rancher/rke2 & /var/lib/rancher/k3s respectively, to a user provided directory. I've found the following instances of these directories hardcoded within the project:

• support-bundle-kit/hack/collector-longhorn

  Line 7 in 5f66ca8

  RKE2_KUBELET_LOG_PATH=${HOST_PATH}/var/lib/rancher/rke2/agent/logs/kubelet.log

• support-bundle-kit/hack/collector-harvester

  Line 48 in 5f66ca8

  local rke2_bin=$(readlink ${HOST_PATH}/var/lib/rancher/rke2/bin)

• support-bundle-kit/hack/collector-harvester

  Lines 111 to 112 in 5f66ca8

  	cp ${HOST_PATH}/var/lib/rancher/rke2/agent/logs/kubelet.log .
  	cp ${HOST_PATH}/var/lib/rancher/rke2/agent/containerd/containerd.log .

Please review the above information, and feel free to reach out to me regarding questions. The api changes can be found within this draft PR within rancher/rancher: https://github.com/rancher/rancher/pull/45326/files#diff-6f7b3ace8ec7df668da64642416a1171322908df345c8e339d314bac3ed08af6R57.