feat: improve configuration validation handling in interactive mode

[OliverTrautvetter]

Don't stop the interactive config generation because of a single wrong value.

Clickup

[Copilot]

Pull request overview

Improves the oms init install-config interactive workflow so configuration validation failures do not abort file generation, aligning with the goal of allowing users to correct issues after generation.

Changes:

• Treat ValidateInstallConfig() findings as non-blocking warnings in interactive mode while preserving hard-fail behavior in non-interactive mode.
• Adjust success messaging to reflect when generation completed with validation warnings.
• Add tests covering interactive “continue despite validation issues” and non-interactive “still fails” behavior.
• Update NOTICE files for Kubernetes-related dependency version bumps (v0.35.2 → v0.35.3).

Reviewed changes

Copilot reviewed 4 out of 4 changed files in this pull request and generated 2 comments.

File	Description
cli/cmd/init_install_config.go	Allows interactive init to continue past validation failures and surfaces warnings via CLI output.
cli/cmd/init_install_config_interactive_test.go	Adds test coverage for interactive warning behavior and non-interactive failure behavior.
NOTICE	Updates Kubernetes module versions/URLs in license notices.
internal/tmpl/NOTICE	Mirrors NOTICE updates for the templated notice file.

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