Add more logging/metrics to GitOps

[manno]

The introduction of events seems to have removed some log lines. We also need more metrics to troubleshoot large fleet deployments with a huge number of gitrepos.

• add INFO level logging for all events, like "new commit" found
• add metrics like
  • number of jobs created

[p-se]

Here's a few things that could be of interest.

The number of times

• a repo has been updated (git pull)
• we have checked for a new commit

but also the time it takes to

• get the most recent commit of a repository
• download/update a git repository
• create a bundle
• create a bundle deployment