chore(deps): update cachix/install-nix-action action to v30 #342

Job	Run time
pre_ci / pre_ci	8s
Check OpenTofu infra	20s
Build artemis	3m 55s
Build package installer-stable	1m 38s
Build minimal	3m 39s
Build package alvr	30s
Build marie-desktop	3m 41s
Build package nixvim	1m 32s
Build package opentofu	25s
Build package plasma-aero-theme	43s
Build package qpm-cli	30s
Build package sandwine	29s
Build package wgsl-analyzer	21s
Build package yt-dlp	35s
	18m 26s

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