feat(glsh): use SOCKS5 proxy for kube command

What

• Drop sshuttle dependecy.
• Use SOCKS5 Proxy to access the Kubernetes API as shown in https://kubernetes.io/docs/tasks/extend-kubernetes/socks5-proxy-access-api/.
• Require kubectl 1.24.0 or higher.

Why

In Kubernetes 1.24.0 SOCKS5 proxy have moved to stable, and also alows user to use kubectl exec using SOCKS5. We get better performance out of this and also one less tool to depend on.

Testing

glsh kube setup
glsh kube use-cluster gstg
glsh: kubectl 1.24 or higher is required
glsh kube use-cluster gstg
...