RecipesPipeline: GroupBy: apply idxfilter to errorbars

[lukas-weber]

Fixes #4917

Description

I included :xerror, :yerror, and :zerror in the list of keys that idxfilter gets applied to. Maybe there are other keys that should be included?

Also not sure if there is a smarter way to test it. idxfilter does not seem to be documented, so I did not edit documentation for now.

Attribution

• [x] I am listed in .zenodo.json (see https://github.com/JuliaPlots/Plots.jl/issues/3503)

Things to consider

• [x] Does it work on log scales?
• [x] Does it work in layouts?
• [x] Does it work in recipes?
• [x] Does it work with multiple series in one call?
• [x] PR includes or updates tests?
• [ ] PR includes or updates documentation?