feat(chartvalidator): api versions support

[bosbaber]

No description provided.

[Copilot]

Pull request overview

This PR adds support for configurable Kubernetes API versions and version specification for chart validation. It introduces two new command-line flags: --api-versions for passing additional Kubernetes API versions to Helm, and --k8s-version for specifying the Kubernetes version used in manifest validation and chart rendering.

Key Changes

• Added --api-versions and --k8s-version command-line flags to both run-checks and render-only commands
• Integrated API versions into Helm chart rendering with --api-versions and --kube-version flags
• Enhanced kubeconform validation with -kubernetes-version and -skip CustomResourceDefinition flags
• Improved schema path handling with absolute paths and multiple schema location patterns

Reviewed changes

Copilot reviewed 6 out of 8 changed files in this pull request and generated 4 comments.

Show a summary per file

File	Description
chartvalidator/checker/main.go	Added command-line flags for API versions and Kubernetes version, updated function signatures to pass these parameters through the execution pipeline
chartvalidator/checker/engine_chart_rendering.go	Implemented API versions support in Helm rendering by appending --api-versions flags and --kube-version to helm template commands
chartvalidator/checker/engine_manifest_validation.go	Enhanced kubeconform validation with Kubernetes version specification, CRD skipping, and improved schema path handling with absolute paths
chartvalidator/checker/engine_app_checker.go	Updated engine constructor to accept and propagate API versions, added schema directory initialization with absolute path resolution
chartvalidator/checker/engine_chart_rendering_test.go	Updated test expectations to include new --kube-version and --api-versions flags in helm commands
chartvalidator/checker/engine_manifest_validation_test.go	Modified test assertions to verify new kubeconform flags including -skip CustomResourceDefinition and -kubernetes-version
chartvalidator/checker/types.go	Aligned struct field formatting for consistency
chartvalidator/checker/appsets.go	Minor formatting cleanup (trailing newline)

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