refactory: read,write use channel

internal/interfaces/dumpio.go

@@ -7,7 +7,7 @@ import (
 
 type DumpIO interface {
 	ReadData(ctx context.Context, size int, query map[string]any, includeFields []string) (<-chan []*model.ESSource, <-chan error)
-	WriteData(ctx context.Context, docs []*model.ESSource) (int, error)
+	WriteData(ctx context.Context, docsCh <-chan []*model.ESSource) error
 
 	ReadMapping(context.Context) (map[string]any, error)
 	WriteMapping(context.Context, map[string]any) error