Implement thread-isolated connection pooling (BoundedReaderPool) in ArrayRecordDataSource to support safe concurrent reads. #539

Job	Run time
call-workflow / Python 3.13 on ubuntu-22.04	9m 43s
call-workflow / Python 3.11 on ubuntu-22.04-arm	7m 4s
call-workflow / Python 3.14 on ubuntu-22.04	4m 46s
call-workflow / Python 3.12 on ubuntu-22.04	2m 42s
call-workflow / Python 3.13 on macos-14	5m 15s
call-workflow / Python 3.13 on ubuntu-22.04-arm	8m 25s
call-workflow / Python 3.14 on ubuntu-22.04-arm	9m 25s
call-workflow / Python 3.12 on macos-14	4m 10s
call-workflow / Python 3.14 on macos-14	4m 40s
call-workflow / Python 3.11 on ubuntu-22.04	7m 28s
call-workflow / Python 3.12 on ubuntu-22.04-arm	6m 52s
call-workflow / Python 3.11 on macos-14	2m 44s
call-workflow / publish-wheel	0s
	1h 13m 14s

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