Add macOS version tracking to telemetry

Overview

Currently, GDK telemetry only tracks the platform (e.g., "linux" or "macos") via GDK::Machine.platform. This limits our ability to correlate stability problems with specific macOS versions, especially when users upgrade their operating systems.

Impacted categories

The following categories relate to this issue:

• gdk-usability - Improvements around how the GDK functions and provides better debugging information.

Proposal

Add a new field for platform version to capture more granular OS information:

• For macOS: Track the specific version (e.g., "14.1.0", "13.6.1", "12.7.4")
• This will help identify patterns in issues related to macOS upgrades
• Enable better support and debugging for version-specific problems

Implementation considerations

• Extend the existing GDK::Machine class to include version detection
• Ensure the implementation works across different macOS versions
• Consider privacy implications and ensure version data is anonymized appropriately
• Update telemetry collection to include the new field

Acceptance criteria

• Add platform version detection to GDK::Machine
• Include macOS version in telemetry data
• Verify version detection works on different macOS releases
• Update any relevant documentation