Implement ClickHouse query logging on PRD

Goal 2 of #421530 (closed)

!130490 (merged) implemented logging for ClickHouse, with a stub for production (which at the time of this writing, is redacted and piped to /dev/null).

Research how do we expose PG SQL queries to logs on PRD and use the ActiveSupport::Notification framework to expose the redacted queries to the logs.

Support for redacted queries implemented here: !129198 (merged)