[Bug 39414] Add a partway job status

https://bugs.winehq.org/show_bug.cgi?id=39414

--- Comment #2 from François Gouget  ---
The activity page makes this much less important.

If one wants to know exactly what the TestBot is working on this is the place
to go as it provides a much more complete picture, including the revert tasks
and history. The links also make it easy to get back to the corresponding jobs
to see the results.

https://testbot.winehq.org/Activity.pl