Updating token prices with ./mev prices fetch-all can fail due to CoinGecko's API rate limits https://www.coingecko.com/en/api/pricing_2 (10-30 requests a minute)
Error message:
ValueError: {'status': {'error_code': 429, 'error_message': "You've exceeded the Rate Limit. Please visit https://www.coingecko.com/en/api/pricing to subscribe to our API plans for higher rate limits."}}
Currently, TOKEN_ADDRESSES length is 14 which can (and does) fail the function, depending on the dynamic limit
By introducing time delays between API queries we can avoid hitting the limit and failing the price update.
