enable BigQueryIO read throttling detection for Python SDK
Before (using a gcp project of limited quota):
upscale to 270+ worker aggressively, before cancel the job
After (note: backend change not yet rolled out on prod):
(up-hill part, max worker=181)
(down-hill part)
note: autoscaler won't kill active worker until current work item finish, and there is a 6 min lapse from worker started to reactive downscale working, see https://github.com/apache/beam/pull/31253#issuecomment-2118608486
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Python ML test failure on 2/5 python versions unrelated to the change. Merging for now.