Fix pre-commit checks failing on fresh checkout of dev

[dblalock]

Fixes CO-883 using a type: ignore as suggested by @hanlint.

[mvpatel2000]

Hm... I'm not getting this on dev... any ideas why?

[hanlint]

@mvpatel2000 I think you can replicate the issue if you try: pip install --upgrade datasets (to >=version 2)

[mvpatel2000]

I'm getting several issues with upgrade... @dblalock are you also seeing these?

[mvpatel2000]

@dblalock could you actually just resolve all the lint errors with datasets 2 and then update meta.yaml / setup.py to upgrade to datasets 2?

[mvpatel2000]

CC: @moinnadeem do we need any tests for upgrading datasets?

[moinnadeem]

Let's hold off on tests for updating datasets (ie. I can't think of anything that'll go wrong by updating that)

We'll need regression tests for updating tokenizers and transformers because of potential throughput and accuracy degradations respectively. If updating datasets requires updating transformers or tokenizers, then we should hold off and regression test. Otherwise, LGTM!

[mvpatel2000]

@dblalock I put a bit on your plate, so if you don't have the bandwidth for this, lmk and I'm happy to help out. I'd rather just do the full upgrade now though given its something we need to get to anyways

[dblalock]

@bandish-shah can you approve / review this? You appear to be the only remaining member of "composer-team-admins"