fix(plugin): correct spelling mistake

internal/plugin/loopback/options.go

@@ -39,7 +39,7 @@ const (
 )
 
 const (
-	defaultStreamChunckSize = 8
+	defaultStreamChunkSize = 8
 )
 
 // PluginMockError is used to mock an error when interacting with an external object store.

internal/plugin/loopback/storage.go

@@ -286,7 +286,7 @@ func (l *LoopbackStorage) getObject(req *plgpb.GetObjectRequest, stream plgpb.St
 	go func() {
 		chunkSize := req.GetChunkSize()
 		if chunkSize == 0 {
-			chunkSize = defaultStreamChunckSize
+			chunkSize = defaultStreamChunkSize
 		}
 		data := []byte{}
 		for _, chunk := range object.DataChunks {