fix(batch-exports): add BadRequest to bigquery export non-retryable

[bretthoerner]

Problem

These are coming up a lot, and should be non-retryable so we give up and email the customer: http://metabase-prod-us/question/505-most-recent-batchexport-failures-retryable-only

Changes

Add to the ol' list.

👉 Stay up-to-date with PostHog coding conventions for a smoother review.

Does this work well for both Cloud and self-hosted?

Yes

How did you test this code?

Existing