Final top-up for Polkadot Hydration farms

This proposal is a ~1 month top-up to the ongoing Polkadot Hydration farms - this is the final distribution under the previously approved campaign, if you wish to see continued incentives on Hydration, vote AYE on Polkadot ref #1542 (https://polkadot.subsquare.io/referenda/1542):

Maintain existing APR on:

• USDC/ USDT 2-Pool
• DOT
• tBTC
• AAVE
• ASTR
• GLMR
• vASTR
• BNC
• PHA
• MYTH/ DOT