fix(x/skyway): use the correct errEthereumSender instead of `errRec…

[tinyfoxy]

…eriverAddr`

Related Github tickets

N/A

Background

errTokenAddress has been checked before, it should be nil after that

        if errTokenAddress != nil {
		logger.WithError(errTokenAddress).Error("Invalid token contract")
		return sdkerrors.Wrap(errTokenAddress, "invalid token contract on claim")
	}

	// likewise nil sender would have to be caused by a bogus event
	if errEthereumSender != nil {
		logger.WithError(errEthereumSender).Error("Invalid ethereum sender")
		return sdkerrors.Wrap(errTokenAddress, "invalid ethereum sender on claim")
	}

Testing completed

• test coverage exists or has been added/updated
• tested in a private testnet

Breaking changes

• I have checked my code for breaking changes
• If there are breaking changes, there is a supporting migration.