Exclude slippage transactions May 2025

[bram-vdberg]

Some invalid prices on Dune have lead to wrong slippage amounts for the RIO token. This PR excludes these transactions.

You can check the prices with this query on Dune:

select * from prices.usd where (
  blockchain = 'ethereum' and minute = TIMESTAMP '2025-05-22 16:19' and contract_address = 0xf21661d0d1d76d3ecb8e1b9f1c923dbfffae4097
) or (
  blockchain = 'ethereum' and minute = TIMESTAMP '2025-05-22 16:17' and contract_address = 0xf21661d0d1d76d3ecb8e1b9f1c923dbfffae4097
);

The RIO token shows a price of 0.344343 USD while the auction has a price of 0.2 USD.