Update Uni-v2 ETH-$DG Rewards

Background

Per Proposal #QmWN1No, Uni-V2 ETH-$DG LP rewards are 225 $DG/week 6/30 - 8/4. The current APY is ~76%, and there is ~$2.2M in liquidity for this pair.

Proposal

Reduce these rewards to 175 $DG/week for the next period (8/5 - 9/8).

Rationale

After 10 weeks at 225 $DG/week, this would get us back to our trend since launch of decreasing LP emission over time. We have been growing total liquidity on other platforms and chains -- QuickSwap (Polygon), PancakeSwap (BSC), and SushiSwap (ETH) -- so there's room to reduce this source of emission a bit. It's still valuable to have 7-figure ETH mainnet liquidity, however, so we shouldn't reduce too drastically.