Fix pr-labeler for fork PRs (pull_request_target)#3581
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The workflow failed on fork PRs (#3579) because pull_request events only get a read-only GITHUB_TOKEN for forks. Switch to pull_request_target which runs in the base repo context with write permissions. Key changes: - Trigger: pull_request_target instead of pull_request - Checkout the PR head SHA explicitly (pull_request_target defaults to base) - Fetch base branch and diff against explicit refs Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>
SusanneWindfeldPedersen
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SusanneWindfeldPedersen
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Learn Build status updates of commit 202c7c0: ✅ Validation status: passed
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Problem
The \label-pr\ workflow fails on PRs from forks (#3579) with:
\
Resource not accessible by integration (403)
\\
This happens because \pull_request\ events only get a read-only \GITHUB_TOKEN\ for fork PRs, regardless of declared permissions.
Fix
Security note
\pull_request_target\ is safe here because we only read file content from the PR (no execution of PR-supplied code). The workflow script is always from the base branch.