chore: disable labeler due to permission and policy

[xushiyan]

Description

Disable due to pull_request_target is not allowed as per https://infra.apache.org/github-actions-policy.html

How are the changes test-covered

• [x] N/A
• [ ] Automated tests (unit and/or integration tests)
• [ ] Manual tests
  • [ ] Details are described below

[codecov[bot]]

Codecov Report

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

Project coverage is 87.42%. Comparing base (3359e10) to head (439f9f4). Report is 1 commits behind head on main.

Additional details and impacted files

```diff @@ Coverage Diff @@ ## main #115 +/- ## ======================================= Coverage 87.42% 87.42% ======================================= Files 14 14 Lines 700 700 ======================================= Hits 612 612 Misses 88 88 ```

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