[Feature] Add command cluster update

[mbianchidev]

Updating Kubernetes in the cluster should be as easy as running a single command

Describe the solution you'd like

• For AWS see https://docs.aws.amazon.com/eks/latest/userguide/update-cluster.html (through AWS CLI even if it might be worth considering eksctl)
• For Azure see https://learn.microsoft.com/en-us/azure/aks/upgrade-cluster?tabs=azure-cli
• For GCP see https://cloud.google.com/kubernetes-engine/docs/how-to/upgrading-a-cluster

Implement the command similarly to create/destroy cluster with an adhoc function for each provider, isolated from the others, leveraging execute_command() and having standardized logs using log().
Consider having an option to not specify the version, in that case it should be the latest available in that moment.

Remember to add tests too!