chore(ci): update sync_prs_to_linear action hash to a54e4298f0

[dielduarte]

Update sync_prs_to_linear action hash to a54e4298f03be11600192b1004b021501545f4c5.

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Summary by cubic

Update the sync_prs_to_linear workflow to pin the resend/public-shared-workflows/.github/actions/sync_prs_to_linear action to a newer commit. Ensures reproducible runs and keeps PR-to-Linear syncing current.

^{Written for commit d35cea6. Summary will update on new commits.}

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[changeset-bot]

⚠️ No Changeset found

Latest commit: d35cea6

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[cubic-dev-ai]

No issues found across 1 file

Confidence score: 5/5

• Automated review surfaced no issues in the provided summaries.
• No files require special attention.

<sub>Auto-approved: Updates pinned commit hash for sync_prs_to_linear action to latest. Low-risk dependency pin update.

Re-trigger cubic</sub>