`eksctl anywhere delete cluster -f` requires `pwd` to be the upper level of the provided file.

1. Create a cluster with `eksctl anywhere create cluster -f ...`
2. `cd ${somewhere else}`
3. run `eksctl anywhere delete cluster -f ~/path/to/cluster.yaml`

Expected: Cluster gets deleted
Actual: `Error: KubeConfig doesn't exists for cluster ${clustername}`

Start with the `eksctl anywhere delete cluster -f` command and reproduce the failure by running it from a directory other than the one containing the cluster file. Trace how the provided path is used to find the kubeconfig; done means deletion succeeds when `-f` receives `~/path/to/cluster.yaml` from another working directory.

Written by the indexing model from the issue text.