T9164: accept NOS-/VD- Jira keys in task-id check; pin NOS in coderabbit

VD tracker project renamed to NOS (2026-07) - PR titles and commit headlines
using the new NOS- key must stop being flagged invalid-task-id; legacy VD-
keys stay accepted, and CodeRabbit now resolves NOS alongside VD. Fleet
replication of canary vyos/vyos-1x#5379, whose adversarial review tightened
the regexes to ASCII [0-9] + literal-space separators.

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