Actions Runner Controller Release 0.14.0 [GA]

### Value Prop

ARC 0.14.0 delivers a more streamlined and reliable experience for managing self-hosted runners at scale. With refined Helm charts for easier Docker configuration, improved logging for faster troubleshooting, updated metrics aligned with platform availability initiatives, and formalized versioning requirements, this release reduces operational complexity and enhances observability. It also introduces a clear migration path by announcing legacy ARC deprecation, ensuring customers can transition to a more robust and maintainable architecture.

### Expected Outcome

Customers benefit from simplified configuration, better visibility into runner health, and improved reliability across their environments. These enhancements reduce friction during setup and maintenance, minimize downtime through clearer metrics and logging, and provide confidence in long-term support through structured versioning. By moving away from legacy ARC, organizations gain a modern foundation that supports scalability and future innovation, creating a more predictable and efficient experience for platform teams.