Ingest more build information into Kusto

[lbussell]

Base image digest is included in our image-info/ImageArtifactDetails, but it is not included in Kusto data. It could be useful to query this information.

https://github.com/dotnet/versions/blob/main/build-info/docker/image-info.dotnet-dotnet-docker-main.json

[lbussell]

Another thing that we should consider ingesting is the reason for the build, e.g. manual/base image update/etc.

[lbussell]

Pipeline run ID could also be useful for investigating which build produced a given image.

[lbussell]

[Triage] It's important to keep in mind what use case we want to solve when implementing this. We don't want to include more information than absolutely necessary in the hopes that it might be helpful later.

The motivation for this issue was: I wanted find all of the instances when Azure Linux images were re-built due to base image updates.

• base image digest does not accomplish this
• pipeline run ID will let you associate any build with a specific pipeline run, but gets confusing when you can have images built and published from different pipelines. same goes with build reason, since you could have an automatic build that was published later by a manually ran pipeline. ideally the reason would be strictly determined by the initial build and not the publishing build.