Fix an undefined latestRun exception

What type of PR is this?

/kind bug /area devops

What this PR does / why we need it:

Because DevOps backend won't execute for git tag of multi branch Pipeline automatically. So branch detail may not contain latestRun field, like as below:

{
 "items": [
  {
   "name": "sonarqube",
   "latestRun": {
    "causes": [
     {
      "shortDescription": "Branch indexing"
     }
    ],
    "endTime": "2021-10-20T06:51:25Z",
    "startTime": "2021-10-20T06:48:14Z",
    "id": "1",
    "pipeline": "sonarqube",
    "result": "FAILURE",
    "state": "FINISHED"
   },
   "branch": {
    "url": "https://github.com/JohnNiang/devops-java-thin-sample/tree/sonarqube"
   }
  },
  {
   "name": "v0.0.1",
   "weatherScore": 100,
   "branch": {
    "url": "https://github.com/JohnNiang/devops-java-thin-sample/tree/v0.0.1"
   }
  }
 ],
 "totalItems": 4
}

This data structure would lead to an error as follow:

7.5a100bedc09c8d76e15a.js:1 
        
       Uncaught (in promise) TypeError: Cannot read properties of undefined (reading 'startTime')
    at Object.render (7.5a100bedc09c8d76e15a.js:1)
    at Fn (main.078db83f5615ed9ea0d3.js:28)
    at qa (main.078db83f5615ed9ea0d3.js:86)
    at ml (main.078db83f5615ed9ea0d3.js:86)
    at cu (main.078db83f5615ed9ea0d3.js:86)
    at lu (main.078db83f5615ed9ea0d3.js:86)
    at Zl (main.078db83f5615ed9ea0d3.js:86)
    at main.078db83f5615ed9ea0d3.js:86
    at t.unstable_runWithPriority (main.078db83f5615ed9ea0d3.js:94)
    at Vo (main.078db83f5615ed9ea0d3.js:86)

This PR tries to mute this error.

Which issue(s) this PR fixes:

None

Special notes for reviewers:

Steps to test

Docker image for test: johnniang/ks-console:bug-blank-branch-page-dev

1. Create a GitHub Pipeline with repository https://github.com/JohnNiang/devops-java-thin-sample and scriptPath Jenkinsfile-online
2. Click branches
3. See the Update Time column for tag row.

Does this PR introduced a user-facing change?

No

Fix an undefined latestRun exception

Additional documentation, usage docs, etc.:

/cc @kubesphere/sig-console