build(deps): bump dtolnay/rust-toolchain from efa25f7f19611383d5b0ccf… #19

Job	Run time
governance / Workflow security linter	1m 21s
governance / Well-Known (RFC 9116 + RSR)	1m 21s
governance / Code quality + docs	1m 21s
governance / Security policy checks	1m 21s
governance / Guix primary / Nix fallback policy	1m 21s
governance / Language / package anti-pattern policy	1m 21s
	8m 6s

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