Bump cachix/install-nix-action from 22 to 23 #320

Job	Run time
Cache minimal Nix dependencies	2m 29s
Cache minimal Nix dependencies	2m 29s
Run and cache flake checks	18m 51s
Run and cache flake checks	18m 51s
Build and deploy documentation	1h 3m 22s
Build and deploy documentation	1h 3m 22s
Build and run tests	1h 4m 38s
Build and run tests	1h 4m 38s
Cache all Nix dependencies	1h 42m 5s
Cache all Nix dependencies	2h 2m 12s
Check tests output	2s
Check tests output	2s
	8h 43m 1s

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