Timer and timing metrics are now standardized to milliseconds
In Airflow 3.0, the timer_unit_consistency setting in the metrics section is removed as it is now the default behaviour.
This is done to standardize all timer and timing metrics to milliseconds across all metric loggers.
Airflow 2.11 introduced the timer_unit_consistency setting in the metrics section of the configuration file. The
default value was False which meant that the timer and timing metrics were logged in seconds. This was done to maintain
backwards compatibility with the previous versions of Airflow.