Use `debug.BuildInfo` instead of stamping SHA

[wilsonehusin]

Describe the solution you'd like

Instead of stamping with -ldflags for Git SHA of a build, we can use debug.BuildInfo to retrieve the vcs.revision¹ value for better integrity of build metadata.

Anything else you would like to add:

Happy to contribute the changes if desired, though would like to hear what maintainers think first :) This started as a discussion over at NixOS/nixpkgs#272983 where NixOS builds Sonobuoy from source.

Environment:

• Sonobuoy version: N/A
• Kubernetes version: (use kubectl version): N/A
• Kubernetes installer & version: N/A
• Cloud provider or hardware configuration: N/A
• OS (e.g. from /etc/os-release): N/A

Footnotes

1. https://shibumi.dev/posts/go-18-feature/ ↩