On Ethereum mainnet, what was the Uniswap v4 spot price of pool 0x21c67e77068de97969ba93d4aab21826d33ca12bb9f565d8496e8fda8a82ca27 the median over 5 evenly spaced blocks of the window (blocks 26098929 to 26099227, about 6 hours before 26101021), as currency1 per 1e18 raw currency0 in raw units?