Add OIDC authentication plugin import

[ttbadr]

Fixes#300

[manusa]

LGTM, thx!

[Copilot]

Pull Request Overview

This PR adds support for OIDC authentication by importing Kubernetes client-go authentication plugins, addressing issue #300. The change enables Helm operations to work with clusters using OIDC, Azure AD, GCP, and exec-based authentication methods.

• Adds new plugins.go file with side-effect imports for Kubernetes authentication plugins
• Reorganizes imports in helm.go to follow standard Go grouping conventions

Reviewed Changes

Copilot reviewed 2 out of 2 changed files in this pull request and generated 1 comment.

File	Description
native/internal/helm/plugins.go	Introduces authentication plugin imports (azure, exec, gcp, oidc) to enable various Kubernetes authentication methods
native/internal/helm/helm.go	Refactors import statements to group standard library and third-party imports separately

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[Copilot]

The import statements should be grouped together in a single import block with parentheses, following the Go convention and the style used throughout this codebase. Consider formatting like this:

import (
_ "k8s.io/client-go/plugin/pkg/client/auth/azure"
_ "k8s.io/client-go/plugin/pkg/client/auth/exec"
_ "k8s.io/client-go/plugin/pkg/client/auth/gcp"
_ "k8s.io/client-go/plugin/pkg/client/auth/oidc"
)

This is the standard Go style for multiple imports and matches the pattern used in other files in this project (e.g., helm.go, install.go, version.go).

Suggested change

	import _ "k8s.io/client-go/plugin/pkg/client/auth/azure"
	import _ "k8s.io/client-go/plugin/pkg/client/auth/exec"
	import _ "k8s.io/client-go/plugin/pkg/client/auth/gcp"
	import _ "k8s.io/client-go/plugin/pkg/client/auth/oidc"
	import (
	_"k8s.io/client-go/plugin/pkg/client/auth/azure"
	_"k8s.io/client-go/plugin/pkg/client/auth/exec"
	_"k8s.io/client-go/plugin/pkg/client/auth/gcp"
	_"k8s.io/client-go/plugin/pkg/client/auth/oidc"
	)