Labkit should provide SQL instrumentation, tracing and metrics
LabKit Go originally did not need SQL instrumentation, since at the time, no Go processes communicated with SQL backends.
This has changed: we now have Praefect and the Registry using SQL.
We should include instrumentation for this, so that we can perform similar SLI calculations as we already do for Rails/SQL calls.
Related to gitlab-com/runbooks!2689 (merged)
Edited by Andrew Newdigate