docs(6a2): refresh STATE.a2ml currency to 2026-06-21 (ordinal RETIRED) #498

Job	Run time
governance / Code quality + docs	12s
governance / Workflow security linter	6s
governance / Security policy checks	4s
governance / Well-Known (RFC 9116 + RSR)	7s
governance / Language / package anti-pattern policy	8s
governance / Licence consistency	8s
governance / Guix primary / Nix fallback policy	6s
governance / Validate Hypatia baseline	3s
governance / Trusted-base reduction policy	8s
	1m 2s

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