Fetch of strategy configuration will fail when working with non default IRs

[miguelmtzinf]

ReserveInterestRateStrategy contracts based on IReserveInterestRateStrategy will not work with the current ListingEngine, because will try to fetch data from functions that are part of IDefaultInterestRateStrategy.

aave-helpers/src/ProtocolV3TestBase.sol

Line 285 in 0a77460

function _writeStrategyConfigs(string memory path, ReserveConfig[] memory configs) internal {