fix: always use safeTransfer

Author: GalloDaSballo

src/UserProxy.sol

@@ -36,7 +36,7 @@ contract UserProxy is IUserProxy {
 
     /// @inheritdoc IUserProxy
     function stake(uint256 _amount, address _lqtyFrom) public onlyStakingV2 {
-        lqty.transferFrom(_lqtyFrom, address(this), _amount);
+        lqty.safeTransferFrom(_lqtyFrom, address(this), _amount);
         lqty.approve(address(stakingV1), _amount);
         stakingV1.stake(_amount);
         emit Stake(_amount, _lqtyFrom);