fix: support revertable for concatenate in pyarrow logic

[agoose77]

Fixes #2884

[codecov]

Codecov Report

Merging #2889 (1ede6fe) into main (e2510ca) will decrease coverage by 0.02%.
Report is 1 commits behind head on main.
The diff coverage is 58.33%.

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Additional details and impacted files

Files	Coverage Δ
src/awkward/_connect/pyarrow.py	90.38% <58.33%> (-0.77%)	⬇️

[agoose77]

@jpivarski this fixes #2884, though I think we should refactor this logic down the road to obviate the need for the revertable mechanism entirely. Instead we should be able to instruct the callee to create a non-option. This gets a bit fiddly when handling records, whose option handling spans multiple nodes, but it should be doable.

[jpivarski]

I was about to look into #2884, but you've already solved it!

Your use of is_revertable is more formal than the getattr with a default that I would have done, but this is good, as it leads the way toward type annotations.

This PR is good to merge!