chore(nix): Update dependencies.

Flake lock file updates:

• Updated input 'hacknix':
    'github:hackworthltd/hacknix/eb217ef5356c58424848dac21249f543882e8b49' (2024-04-08)
  → 'github:hackworthltd/hacknix/fab8e0bca9ff001dcf38efcaa9d6b34a3808df5d' (2024-04-20)
• Updated input 'hacknix/nix-darwin':
    'github:LnL7/nix-darwin/36524adc31566655f2f4d55ad6b875fb5c1a4083' (2024-03-30)
  → 'github:LnL7/nix-darwin/9e7c20ffd056e406ddd0276ee9d89f09c5e5f4ed' (2024-04-19)
• Updated input 'hacknix/nixos-generators':
    'github:nix-community/nixos-generators/0c15e76bed5432d7775a22e8d22059511f59d23a' (2024-04-04)
  → 'github:nix-community/nixos-generators/d942db8df8ee860556a38754f15b8d03bf7e6933' (2024-04-08)
• Updated input 'hacknix/nixos-generators/nixlib':
    'github:nix-community/nixpkgs.lib/90b1a963ff84dc532db92f678296ff2499a60a87' (2024-03-31)
  → 'github:nix-community/nixpkgs.lib/3c62b6a12571c9a7f65ab037173ee153d539905f' (2024-04-07)
• Updated input 'hacknix/nixpkgs':
    'github:NixOS/nixpkgs/f480f9d09e4b4cf87ee6151eba068197125714de' (2024-04-04)
  → 'github:NixOS/nixpkgs/d764f230634fa4f86dc8d01c6af9619c7cc5d225' (2024-04-18)
• Updated input 'hacknix/pre-commit-hooks-nix':
    'github:cachix/pre-commit-hooks.nix/e35aed5fda3cc79f88ed7f1795021e559582093a' (2024-04-02)
  → 'github:cachix/pre-commit-hooks.nix/40e6053ecb65fcbf12863338a6dcefb3f55f1bf8' (2024-04-12)
• Updated input 'pre-commit-hooks-nix':
    'github:cachix/pre-commit-hooks.nix/70f504012f0a132ac33e56988e1028d88a48855c' (2024-04-08)
  → 'github:cachix/pre-commit-hooks.nix/6fb82e44254d6a0ece014ec423cb62d92435336f' (2024-04-24)
• Updated input 'treefmt-nix':
    'github:numtide/treefmt-nix/49dc4a92b02b8e68798abd99184f228243b6e3ac' (2024-04-01)
  → 'github:numtide/treefmt-nix/c6aaf729f34a36c445618580a9f95a48f5e4e03f' (2024-04-25)