message: fix log completiontime issue
diff: @@ -52,13 +52,13 @@ class PipelineRunLogs extends React.Component<PipelineRunLogsProps, PipelineRunL
  getSortedTaskRun = (taskRunFromYaml) => {
  const taskRuns = Object.keys(taskRunFromYaml).sort((a, b) => {
  if (_.get(taskRunFromYaml, [a, 'status', 'completionTime'], false)) {
  - return taskRunFromYaml[b].status.completionTime &&
  + return taskRunFromYaml[b].status?.completionTime &&
  new Date(taskRunFromYaml[a].status.completionTime) >
  new Date(taskRunFromYaml[b].status.completionTime)
  ? 1
  : -1;
  }
  - return taskRunFromYaml[b].status.completionTime ||
  + return taskRunFromYaml[b].status?.completionTime ||
  new Date(taskRunFromYaml[a].status?.startTime) >
  new Date(taskRunFromYaml[b].status?.startTime)
  ? 1
  