On Base, what was the Uniswap v4 spot price of pool 0xfba2c4592d32a4e2e6393b8898f9110b4e272983f4bd416b38f81672a17fe3dc (USDC/USDT, currency0/currency1) as the median over 13 evenly spaced blocks of the window (blocks 52213226 to 52215025, about 2.5 hours before 52219525), as currency1 per 1e18 raw currency0 in raw units?