dex(base_liq): add async_trait to BaseLiquidityIndex

crates/core/component/dex/src/component/position_manager/base_liquidity_index.rs

@@ -8,6 +8,7 @@ use crate::state_key::engine;
 use crate::DirectedTradingPair;
 use penumbra_proto::{StateReadProto, StateWriteProto};
 
+#[async_trait]
 pub(crate) trait AssetByLiquidityIndex: StateWrite {
     /// Update the base liquidity index, used by the DEX engine during path search.
     ///