[Webservice] Add new detector HIREX to 3 dark runs detectors

This is already hotfixed.

I think we should move this to the configuration rather than keep on adding these to the code.

I have created an issue to tackle later as I want to deploy these hotfixes by today

changed milestone to %3.12.2

mentioned in merge request !956 (merged)

LGTM

merged

mentioned in commit 15002cf3