Fix update CI test with latest stable operator (1.6.4)

[juadk]

As 1.6.4 is now the new stable, some things can be cleanup up in the Cypress code and some conditions could also be removed.

[juadk]

Yesterday, I found an issue with the elemental-ui extension and rancher 2.9-head.
Version 1.3.1 is installed instead of 2.0.0, so the elemental menu doest not work.
The UI team is working on it.

[juadk]

The issue got fixed but there is another issue today:

  Normal   Pulling    5m38s (x4 over 7m5s)  kubelet            Pulling image "rancher/rancher-agent:v2.9-77836aafa881e247a14eb23402e628091f718744-head"
  Warning  Failed     5m38s (x4 over 7m5s)  kubelet            Failed to pull image "rancher/rancher-agent:v2.9-77836aafa881e247a14eb23402e628091f718744-head": rpc error: code = NotFound desc = failed to pull and unpack image "docker.io/rancher/rancher-agent:v2.9-77836aafa881e247a14eb23402e628091f718744-head": failed to resolve reference "docker.io/rancher/rancher-agent:v2.9-77836aafa881e247a14eb23402e628091f718744-head": docker.io/rancher/rancher-agent:v2.9-77836aafa881e247a14eb23402e628091f718744-head: not found
  Warning  Failed     5m38s (x4 over 7m5s)  kubelet            Error: ErrImagePull
  Warning  Failed     5m14s (x6 over 7m4s)  kubelet            Error: ImagePullBackOff
  Normal   BackOff    2m3s (x20 over 7m4s)  kubelet            Back-off pulling image "rancher/rancher-agent:v2.9-77836aafa881e247a14eb23402e628091f718744-head"

[juadk]

All is green now!