API's BeatmapDifficultyAttributes is broken or has outdated documentation

[TTTaevas]

Since the pp update on the 6th of March, it seems like some of the fields specific to each ruleset are no longer returned by Get Beatmap Attributes
According to my testing, they also do return new fields that are not in the documentation:

• The response for a osu! beatmap has aim_difficult_slider_count and is missing approach_rate among others (tested with beatmap 125660 with DT)
• The response for a taiko beatmap has mono_stamina_factor, all its new other fields such as colour_difficulty have a value of 0 and is missing great_hit_window among others (tested with beatmap 388463 with DT)

(I have not tested catch or mania beatmaps)
I don't know how much of that is intentional, the taiko values didn't seem intentional to me, which is why I went with a rather vague title for this issue

[peppy]

Documentation needs an update.

cc @ppy/pp-maintainers maybe