More logging

[davidak]

Is your feature request related to a problem? Please describe.

When the post-build hook sends hashes to the log, i only see this line in trustix log:

May 09 07:44:11 gaming trustix[893843]: time="2022-05-09T07:44:11+02:00" level=debug msg="Checking peer credential for socket"

Describe the solution you'd like

Also log "added key x"

Describe alternatives you've considered

Additional context
you probably also missed a lot of actions that can be logged, even if just in debug mode

e.g. when my result is submitted to https://r13y.trustix.dev/ i want to see a link to the results derivation, to see if there are other results and if they match mine