[ARFC] Polygon v2 Borrow Rate Adjustments

The next round of updates (late September) will bring the following Borrow Rate adjustments:

Asset Market Current Slope1 Proposed Slope1
DAI Polygon v2 13.50% 14.25%
USDT Polygon v2 13.50% 14.25%
wBTC Polygon v2 8.50% 9.25%
wETH Polygon v2 8.50% 9.25%
USDC Polygon v2 13.50% 14.25%
wMATIC Polygon v2 10.50% 11.25%