fix: import group for third lib

examples/dubbo/go-server/app/user.go

@@ -20,13 +20,13 @@ package main
 import (
 	"context"
 	"fmt"
-	"github.com/dubbogo/hessian2/java_exception"
 	"strconv"
 	"time"
 )
 
 import (
 	"github.com/dubbogo/hessian2"
+	"github.com/dubbogo/hessian2/java_exception"
 	perrors "github.com/pkg/errors"
 )
 

examples/dubbo/with-configcenter-go-server/app/user.go

@@ -20,7 +20,6 @@ package main
 import (
 	"context"
 	"fmt"
-	"github.com/dubbogo/hessian2/java_exception"
 	"strconv"
 	"time"
 )
@@ -32,6 +31,7 @@ import (
 import (
 	"github.com/apache/dubbo-go/config"
 	hessian "github.com/dubbogo/hessian2"
+	"github.com/dubbogo/hessian2/java_exception"
 )
 
 type Gender hessian.JavaEnum