CI: drop the redundant concurrency group from the pod job

[luohuan19]

Summary

• Remove the concurrency group from the st-pod-onboard job in _st-pod.yml, along with the comment that only existed to explain it.

The group existed to stop two runs from sharing the peer machine's devices and its POD_L3_DAEMON_PORT, since a runner claim only covers the machine the job lands on and the peer is driven over ssh. That contention cannot actually occur: the sole caller passes ["self-hosted","Linux","ARM64","a2a3pod"], the a2a3pod label resolves to a single self-hosted runner, and a self-hosted runner executes one job at a time. The group therefore serialized nothing the runner claim did not already serialize, while making runs from unrelated PRs queue behind each other.

Testing

• pre-commit run --files .github/workflows/_st-pod.yml — all hooks pass (check yaml included)
• Simulation tests — not applicable (workflow-only change)
• Hardware tests — not applicable

Note

This is only safe while a2a3pod maps to one runner. If a second pod pair is ever added under the same label, the guard has to come back.

[coderabbitai]

No actionable comments were generated in the recent review. 🎉

ℹ️ Recent review info

⚙️ Run configuration

Configuration used: Organization UI

Review profile: CHILL

Plan: Pro Plus

Run ID: 9954e603-5b29-4ed3-8a58-dba846022dd1

📥 Commits

Reviewing files that changed from the base of the PR and between 178c7cb and 443a99e.

📒 Files selected for processing (1)

• .github/workflows/_st-pod.yml

💤 Files with no reviewable changes (1)

• .github/workflows/_st-pod.yml

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📝 Walkthrough

Walkthrough

The pod workflow no longer uses a concurrency group or non-canceling concurrency setting. Runs for the same platform can execute concurrently.

Changes

Cohort / File(s)	Summary
Pod workflow concurrency .github/workflows/_st-pod.yml	Removes the concurrency configuration from the pod job.

Estimated code review effort: 1 (Trivial) | ~2 minutes

Poem

I’m a rabbit with a workflow tune,
Runs now hop beneath the moon.
No concurrency gate in sight,
Pod jobs leap in parallel flight.
Carrot-certified, neat and bright!

🚥 Pre-merge checks | ✅ 5

✅ Passed checks (5 passed)

Check name	Status	Explanation
Title check	✅ Passed	The title clearly and concisely describes removal of the redundant concurrency group from the pod job.
Description check	✅ Passed	The description accurately explains the workflow change, its rationale, testing, and the condition for restoring the guard.
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.

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