Fix images for airgap environments

[thehejik]

I identified following problems with turtles images in rancher community 2.13-alpha3 in airgap environment

• we override default registry.rancher.com/rancher/cluster-api-controller:v1.10.6 defined in the manifest by clusterctl-config to use upstream one from registry.k8s.io instead [BUG] Image for capi-controller-manager not present in rancher-images.txt for airgap provisioning of 2.13.0-alpha3 rancher#52495
• the image ^ is mirrored but we can't override the image name, only registry and tag so we should somehow get rid of mirrored- prefix in rancher/mirrored-cluster-api-controller:v1.10.6 (present in rancher-images.txt)
• We should use another kubectl image like rancher/kubectl:v1.34.1 for jobs, the current one registry.k8s.io/kubernetes/kubectl:v1.32.3 is not mirrored