message: fix rewrite job time
diff: @@ -193,7 +193,7 @@ Status MetaDataUpgrade::rewriteJobDesc(const folly::StringPiece &key,
  str.append(reinterpret_cast<const char*>(&len), sizeof(len))
  .append(reinterpret_cast<const char*>(&para[0]), len);
  }
  - str.append(reinterpret_cast<const char*>(&status), sizeof(Status))
  + str.append(reinterpret_cast<const char*>(&status), sizeof(nebula::meta::cpp2::JobStatus))
  .append(reinterpret_cast<const char*>(&startTime), sizeof(int64_t))
  .append(reinterpret_cast<const char*>(&stopTime), sizeof(int64_t));
  