Update on-call team chat group with today's rota

On-call assignments and channel context drift after schedule changes, leaving responders unsure who owns shifts. Update the on-call usergroup and channel topic so engineers see owners before midday.

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Overview

When on-call rosters fall out of sync, incident handoffs slow and responders waste time verifying ownership. Keep your team chat usergroup and channel topic aligned to the authoritative on-call schedule so engineers see correct owners by midday and reduce confusion during triage.