sdp:lead_time_for_change:by_commit should include the image sha that it was matched with as a label

[etsauer]

Feature description

The lead time for change measure combines two different metrics:

• commit_timestamp - uniquely identified by a commit sha
• deploy_timestamp - uniquely identified by an image sha

Currently when we query sdp:lead_time:by_commit we get results that look like:

sdp:lead_time:by_commit{app="/pelorus-api/", commit="159c63792a5c1b0d34902be8bc2280406ad1ef06"}

This gives us only the commit id. this metric should also list the image sha, since it should be a one-to-one mapping.

How this will help you

This will give us better traceability for data validation

Feature priority

⌛ It will greatly improve my experience using Pelorus

Code of Conduct

• [X] I agree to follow Pelorus's Code of Conduct