[BUG] Duplicate records in prices.usd_latest

[dknugo]

Description

Prices in prices.usd_latest have duplicate records

Current behavior

Duplicate records for contract_address / blockchain:
select contract_address, blockchain, count(*) from prices.usd_latest group by 1, 2 having count(*) > 1

Expected behavior

Only 1 record in table prices.usd_latest for a combination of contract_address & blockchain

Impacted model(s)

Possible solution