update ParserMediaInfoUtils

Author: markjrzhang

src/main/java/com/qcloud/cos/internal/ParserMediaInfoUtils.java

@@ -146,6 +146,8 @@ public static void ParsingMediaVideo(MediaInfoVideo video, String name, String v
                 video.setLanguage(value);
             case "NumFrames":
                 video.setNumFrames(value);
+            case "CreationTime":
+                video.setCreationTime(value);
             default:
                 break;
         }