* ci(triage): time out hung Oz triage runs instead of waiting 6h
Triage runs occasionally wedge inside the `Triage with Oz agent` step
before the agent's first turn. The job then sits until GitHub's 6h
ceiling cancels it, so the issue is never labelled and never gets a
comment explaining why. Eight runs have hit this.
Successful triage runs complete in ~3 min (13 min worst case observed),
so a 20 min step timeout leaves ample headroom while turning a silent 6h
stall into a red run you can see and re-run.
Co-Authored-By: Oz <oz-agent@warp.dev>
* remove timeout comment block 1
* remove timeout comment block 2
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Co-authored-by: Oz <oz-agent@warp.dev>
