[risk=low][RW-14230] Explicitly set scatter count for v8 too

[jmthibault79]

Running this command took only ~45 minutes on this branch

./project.rb run-extraction \
--project all-of-us-rw-prod \
--namespace aou-rw-a2626269 \
--dataset_id 117923 \
--person-ids "1123013,1466961" \
--legacy false \
--filter_set echo_full \
--cdr_bq_project fc-aou-cdr-prod-ct \
--wgs_bq_dataset wgs_C2024Q3

The same command on main for comparison (TODO capture total time)

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[Qi77Qi]

so the wdl input for scatter count's param name has changed?

[jmthibault79]

@Qi77Qi yes for v8