ci: delete all pull_request_target workflows#2823
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Drop `label-conflicts.yml` and `labeler.yml` which used the `pull_request_target` trigger. See Lightning-AI/pytorch-lightning#21721.
k223kim
approved these changes
May 28, 2026
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What does this PR do?
Removes GitHub Actions workflows that used the
pull_request_targetevent:labeler.ymllabel-conflicts.ymlpull_request_targetruns with full repo secrets and write permissions even for fork PRs — this is the exact vector exploited in the TanStack npm supply chain attack, which cascaded to hundreds of downstream packages. The files are fully recoverable from git history if they need to be reimplemented safely later.Follows the same cleanup done in Lightning-AI/pytorch-lightning#21721.