ci: fix unresolvable setup-beam pins in 21 hypatia-scan.yml (Refs #64) #10

Job	Run time
governance / Security policy checks	5s
governance / Guix primary / Nix fallback policy	5s
governance / Well-Known (RFC 9116 + RSR)	9s
governance / Workflow security linter	11s
governance / Code quality + docs	38s
governance / Language / package anti-pattern policy	5s
	1m 13s

Provide feedback