Kamel executable does not support Kubeconfig with multiple files

[rodcloutier]

What happened?

While using Kamel I have observed that we cannot use kubeconfig that refers to multiple files.

Steps to reproduce

1. Create a kubeconfig that refers multiple files ie KUBECONFIG=$KUBECONFIG:$KUBECONFIG
2. Call any Kamel command that refers to the cluster

   ❯ ./kamel get integration
   

3. Observe the error

   Error: cannot get current namespace: open /Users/rcloutier/dev/petal/rto/next_gen_pocs/workflow/camel-k/kubeconfig.kind:/Users/rcloutier/dev/petal/rto/next_gen_pocs/workflow/camel-k/kubeconfig.kind: no such file or directory
   

Relevant log output

No response

Camel K version

build from main