chore: placate the linter

Author: ARR4N

core/vm/preprocess.libevm_test.go

@@ -23,6 +23,10 @@ import (
 	"math/big"
 	"testing"
 
+	"github.com/holiman/uint256"
+	"github.com/stretchr/testify/assert"
+	"github.com/stretchr/testify/require"
+
 	"github.com/ava-labs/libevm/common"
 	"github.com/ava-labs/libevm/core"
 	"github.com/ava-labs/libevm/core/rawdb"
@@ -32,9 +36,6 @@ import (
 	"github.com/ava-labs/libevm/crypto"
 	"github.com/ava-labs/libevm/libevm/ethtest"
 	"github.com/ava-labs/libevm/params"
-	"github.com/holiman/uint256"
-	"github.com/stretchr/testify/assert"
-	"github.com/stretchr/testify/require"
 )
 
 type preprocessingCharger struct {