Part 2 of adding version messages to the `alert_rule_version` able. This allows setting the message via a header when using the Prometheus conversion API, which can be useful for e.g. linking changes back to source control.
Part 2 of adding version messages to the `alert_rule_version` able. This allows setting the message via a header when using the Prometheus conversion API, which can be useful for e.g. linking changes back to source control.