kubectl-gs release v2.19.1

Fixed

• Fix nil pointer panic in template nodepool command.

[2.19.0] - 2022-08-12

Changed

• Make all kubectl config flags (e.g --context and --kubeconfig global and unify kubeconfig management throughout commands.
• Remove CAPA templating from aws provider.
• Add new provider capa for templating a cluster.
• Remove fetching ssh sso ca pub key for capa from management cluster.
• Add test for CAPA provider cluster templating.