Solidity Contracts v2.0.1

Description

This missing validation check can prevent funds getting stuck on ICS20 transfers using unorthodox ERC20 implementations.

What's Changed

• imp(contracts/ics20): add more balance validation to permit2 transfers (backport #954) by @mergify[bot] in #987

Full Changelog: solidity-v2.0.0...solidity-v2.0.1