fix autolabeler by adding pull request events

[codecov[bot]]

Codecov Report

All modified and coverable lines are covered by tests :white_check_mark:

Project coverage is 72.53%. Comparing base (2f028bb) to head (fafdfee).

Additional details and impacted files

```diff @@ Coverage Diff @@ ## main #41 +/- ## ======================================= Coverage 72.53% 72.53% ======================================= Files 6 6 Lines 142 142 ======================================= Hits 103 103 Misses 39 39 ```

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[sonarcloud[bot]]

Quality Gate passed

Issues
0 New issues
0 Accepted issues

Measures
0 Security Hotspots
No data about Coverage
No data about Duplication

See analysis details on SonarCloud

[shenxianpeng]

It works now