chore(ci): remove label-sync workflow (superseded by declarative IssueLabels)

[devantler]

🤖 Generated by the Daily AI Assistant

Part of devantler-tech/.github#58 (maintainer go-ahead 2026-06-27 after devantler-tech/.github#64).

Removes the weekly EndBug/label-sync workflow. This repo's labels are now reconciled declaratively by the Crossplane IssueLabels CR in devantler-tech/.github deploy/labels/ — verified live before this sweep: the CR is Synced+Ready, so there is no label-management gap. The actions/sync-github-labels composite itself is retired in a companion PR on devantler-tech/actions; this workflow pins it by SHA, so merge order does not matter.

[coderabbitai]

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ℹ️ Recent review info

⚙️ Run configuration

Configuration used: Organization UI

Review profile: CHILL

Plan: Pro Plus

Run ID: e717c671-2cb4-4ba0-aa56-9dd56dafd8d6

📥 Commits

Reviewing files that changed from the base of the PR and between 8d47812 and b5658db.

📒 Files selected for processing (1)

• .github/workflows/sync-labels.yaml

💤 Files with no reviewable changes (1)

• .github/workflows/sync-labels.yaml

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📝 Walkthrough

Walkthrough

This pull request deletes the .github/workflows/sync-labels.yaml GitHub Actions workflow, which previously synchronized GitHub labels via a scheduled/dispatch job using the devantler-tech/actions/sync-github-labels action.

Changes

Cohort / File(s)	Summary
Workflow removal .github/workflows/sync-labels.yaml	Deletes the scheduled/dispatch-triggered sync-labels workflow that ran the label-sync action.

Estimated code review effort: 1 (Trivial) | ~3 minutes

Possibly related issues

• Remove the EndBug/label-sync mechanism (superseded by declarative IssueLabels) .github#58: Both changes remove the same sync-labels.yaml workflow file, indicating a shared objective.

🚥 Pre-merge checks | ✅ 5

✅ Passed checks (5 passed)

Check name	Status	Explanation
Title check	✅ Passed	The title accurately describes removing the label-sync workflow and notes the new declarative IssueLabels replacement.
Description check	✅ Passed	The description directly explains the workflow removal and its declarative label-management replacement.
Docstring Coverage	✅ Passed	No functions found in the changed files to evaluate docstring coverage. Skipping docstring coverage check.
Linked Issues check	✅ Passed	Check skipped because no linked issues were found for this pull request.
Out of Scope Changes check	✅ Passed	Check skipped because no linked issues were found for this pull request.

✨ Finishing Touches

🧪 Generate unit tests (beta)

• Create PR with unit tests
• Commit unit tests in branch claude/remove-label-sync

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[github-actions]

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