Regenerated regional_unique_devices.tsv. Updated quarterly_metrics.tsv and regional uniques query.

Regenerated regional_unique_devices.tsv, quarterly_metrics.tsv to fix regional totals that are no longer accurate because of changes to wikimedia region classification of countries that were done prior to the original regional_unique_devices.tsv being generated. Also updated regional_unique_devices.sql to query wikimedia region from canonical_data.countries. Bug: T364145