fix: Make transferOnLiq() virtual

Author: miguelmtzinf

contracts/protocol/tokenization/AToken.sol

@@ -119,7 +119,7 @@ contract AToken is VersionedInitializable, ScaledBalanceTokenBase, EIP712Base, I
     address from,
     address to,
     uint256 value
-  ) external override onlyPool {
+  ) external virtual override onlyPool {
     // Being a normal transfer, the Transfer() and BalanceTransfer() are emitted
     // so no need to emit a specific event here
     _transfer(from, to, value, false);