flake.lock: Update

Flake lock file updates:

• Updated input 'deadnix':
    'github:astro/deadnix/d8e8ab9c55e3934b396ab485252c2dbdd8725729' (2022-12-16)
  → 'github:astro/deadnix/c912ac1925da06b7f6d357f96d31061160f25ed0' (2023-04-29)
• Updated input 'deadnix/utils':
    'github:numtide/flake-utils/5aed5285a952e0b949eb3ba02c12fa4fcfef535f' (2022-11-02)
  → 'github:numtide/flake-utils/cfacdce06f30d2b68473a46042957675eebb3401' (2023-04-11)
• Added input 'deadnix/utils/systems':
    'github:nix-systems/default/da67096a3b9bf56a91d16901293e51ba5b49a27e' (2023-04-09)
• Updated input 'fenix':
    'github:nix-community/fenix/d6f9bdfb4a25395b15f6c6feba3d0bba5e62b3ce' (2022-12-31)
  → 'github:nix-community/fenix/73d13a8c584a2f8b35677a38e86ba148dc99d2f3' (2023-05-20)
• Updated input 'fenix/rust-analyzer-src':
    'github:rust-lang/rust-analyzer/0d76b94c90a20c20d3e57ea1ab03d9afa00dee72' (2022-12-30)
  → 'github:rust-lang/rust-analyzer/bb78059be4d090571bd70de57831f84eee5be678' (2023-05-19)
• Updated input 'naersk':
    'github:nix-community/naersk/d998160d6a076cfe8f9741e56aeec7e267e3e114' (2022-12-15)
  → 'github:nix-community/naersk/88cd22380154a2c36799fe8098888f0f59861a15' (2023-03-23)
• Updated input 'nixos-shell':
    'github:Mic92/nixos-shell/55de7d4d449ff30cdde8b8fe484a86eef477245e' (2022-03-02)
  → 'github:Mic92/nixos-shell/2cb76875e501eccb012625546864dd0085750843' (2023-05-02)
• Updated input 'sops-nix':
    'github:Mic92/sops-nix/855b8d51fc3991bd817978f0f093aa6ae0fae738' (2022-12-25)
  → 'github:Mic92/sops-nix/df8b52249e78a0ac33680c9e0b7a029ec22cd8f5' (2023-05-20)
• Updated input 'sops-nix/nixpkgs-stable':
    'github:NixOS/nixpkgs/939c05a176b8485971463c18c44f48e56a7801c9' (2022-12-24)
  → 'github:NixOS/nixpkgs/c6d2f3dc0d3efd4285eebe4f8a36a47ba438138e' (2023-05-14)