chore: execute goimports to format the code (#7983)

* chore: execute goimports to format the code

Signed-off-by: promalert <promalert@outlook.com>

* goimports -w .

---------

Signed-off-by: promalert <promalert@outlook.com>
Co-authored-by: Chris Lu <chris.lu@gmail.com>

weed/storage/backend/s3_backend/s3_sessions.go

@@ -2,7 +2,6 @@ package s3_backend
 
 import (
 	"fmt"
-	"github.com/seaweedfs/seaweedfs/weed/util/version"
 	"sync"
 
 	"github.com/aws/aws-sdk-go/aws"
@@ -11,6 +10,7 @@ import (
 	"github.com/aws/aws-sdk-go/aws/session"
 	"github.com/aws/aws-sdk-go/service/s3"
 	"github.com/aws/aws-sdk-go/service/s3/s3iface"
+	"github.com/seaweedfs/seaweedfs/weed/util/version"
 )
 
 var (

weed/storage/backend/s3_backend/s3_upload.go

@@ -2,11 +2,12 @@ package s3_backend
 
 import (
 	"fmt"
+	"os"
+	"sync"
+
 	"github.com/aws/aws-sdk-go/aws"
 	"github.com/aws/aws-sdk-go/service/s3/s3iface"
 	"github.com/aws/aws-sdk-go/service/s3/s3manager"
-	"os"
-	"sync"
 
 	"github.com/seaweedfs/seaweedfs/weed/glog"
 )