[#1659] audit: Fix duplicated request logs

When we do `object put` with audit enabled we get several entries
in logs: with and without object id.

`object put` request is logged in 2 places:
1. `(*auditPutStream) CloseAndRecv()` - when the client closes the
   request stream or when stream gets aborted.
2. `(*auditPutStream) Send()` - when stream was NOT aborted.

`Send()` does error check for `ErrAbortStream` because if there
is any other error - CloseAndRecv will not be called and there
won't be any audit log about failed request.
It led to logging on every object chunck put, even if `err == nil`.

Added check for `err != nil` in `Send()` to fix it.

Signed-off-by: Ekaterina Lebedeva <ekaterina.lebedeva@yadro.com>

pkg/services/object/audit.go

@@ -163,7 +163,7 @@ func (a *auditPutStream) Send(ctx context.Context, req *object.PutRequest) error
 	if err != nil {
 		a.failed = true
 	}
-	if !errors.Is(err, util.ErrAbortStream) { // CloseAndRecv will not be called, so log here
+	if err != nil && !errors.Is(err, util.ErrAbortStream) { // CloseAndRecv will not be called, so log here
 		audit.LogRequestWithKey(ctx, a.log, objectGRPC.ObjectService_Put_FullMethodName, a.key,
 			audit.TargetFromContainerIDObjectID(a.containerID, a.objectID),
 			!a.failed)