* Refactor test suite to remove K3s container dependency (#971)
- Removed K3s container setup and teardown logic from CLI and E2E test suites.
- Simplified Kubernetes client initialization by eliminating the need for K3s container.
- Updated InitFromKubeconfig function to no longer require K3s container as a parameter.
- Deleted unused HelmInstaller and RESTClientGetter implementations.
- Cleaned up logging functions related to K3s and Helm operations.
* update CI