flake.lock: Update

Flake lock file updates:

• Updated input 'dream2nix':
    'github:nix-community/dream2nix/262198033e23e9ee832f0cc8133d38f07598f555' (2023-12-13)
  → 'github:nix-community/dream2nix/233c4d8106dcab2d8f930def6a0ceb45c9f923e7' (2024-01-23)
• Updated input 'flake-utils':
    'github:numtide/flake-utils/ff7b65b44d01cf9ba6a71320833626af21126384' (2023-09-12)
  → 'github:numtide/flake-utils/1ef2e671c3b0c19053962c07dbda38332dcebf26' (2024-01-15)
• Updated input 'nixpkgs':
    'github:NixOS/nixpkgs/886c9aee6ca9324e127f9c2c4e6f68c2641c8256' (2023-12-18)
  → 'github:NixOS/nixpkgs/5f5210aa20e343b7e35f40c033000db0ef80d7b9' (2024-01-22)
• Updated input 'rust-overlay':
    'github:oxalica/rust-overlay/20fd62b0891707a1db8117d09fc3e65a1cd0f6d7' (2023-12-19)
  → 'github:oxalica/rust-overlay/f889dc31ef97835834bdc3662394ebdb3c96b974' (2024-01-23)
• Updated input 'sops-nix':
    'github:Mic92/sops-nix/e19071f9958c8da4f4347d3d78790d97e98ba22f' (2023-12-02)
  → 'github:Mic92/sops-nix/ae171b54e76ced88d506245249609f8c87305752' (2024-01-21)
• Updated input 'sops-nix/nixpkgs-stable':
    'github:NixOS/nixpkgs/dfb95385d21475da10b63da74ae96d89ab352431' (2023-11-25)
  → 'github:NixOS/nixpkgs/a1982c92d8980a0114372973cbdfe0a307f1bdea' (2024-01-12)
• Updated input 'treefmt-nix':
    'github:numtide/treefmt-nix/e82f32aa7f06bbbd56d7b12186d555223dc399d1' (2023-11-12)
  → 'github:numtide/treefmt-nix/9d458726fed1cc00e48031bb7214dfa3c16b7a0f' (2024-01-22)