Call Gulp() on PieDAO's Degen Pie

Basic Summary: PieDAO is including YAM in their DEFI-Degen Pie. These Pies basically act as on-chain index funds leveraging Balancer smart pools. We need to call gulp() on the pool to ensure YAM balances are properly updated on rebases.

Motivation: Safe inclusion in the pie.

Specifications: Add smart pool address to list of sync/gulp addresses.