updates the labkit v2 logging documentation to match API changes

See merge request !265



Merged-by: Elliot Forbes <eforbes@gitlab.com>
Approved-by: Doug Barrett <dbarrett@gitlab.com>
Approved-by: Manuel Schönlaub <mschoenlaub@gitlab.com>
Approved-by: Igor <iwiedler@gitlab.com>
Reviewed-by: Doug Barrett <dbarrett@gitlab.com>

Add HTTP Status field

See merge request !273



Merged-by: Elliot Forbes <eforbes@gitlab.com>
Approved-by: Elliot Forbes <eforbes@gitlab.com>
Approved-by: Hercules Merscher <hmerscher@gitlab.com>
Reviewed-by: GitLab Duo <gitlab-duo@gitlab.com>
Co-authored-by: Matias Alvarez <malvarez@gitlab.com>