hotfix: bump cache keys (v36/v39) to purge poisoned all-benchmarks aggregate - #1287
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…poisoned aggregate after SRH stuck pool
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Homepage stuck on Awaiting samples for all latest-deployed benches. Root cause: SRH pool got stuck (Redis GenServer.call timeouts on every GET, 4 client connections instead of 60), so during the last ISR revalidate the aggregate loader hit AllBenchmarksDraftError and cached the draft-placeholder fallback for 300s. Restarting SRH fixed the Redis side but the poisoned v38 cache still has ~5min TTL to grind through.
Bump keys in lockstep (bench-unfiltered v35→v36, all-benchmarks v38→v39) so the new build starts from an empty cache and picks up healthy Redis reads immediately.
Follows the same recipe as PR #1190.