flake.lock: Update (#89)

Flake lock file updates:

• Updated input 'home-manager-unstable':
    'github:nix-community/home-manager/635563f245309ef5320f80c7ebcb89b2398d2949?narHash=sha256-XpZOkaSJKdOsz1wU6JfO59Rx2fqtcarQ0y6ndIOKNpI%3D' (2024-07-21)
  → 'github:nix-community/home-manager/304a011325b7ac7b8c9950333cd215a7aa146b0e?narHash=sha256-JH8N5uoqoVA6erV4O40VtKKHsnfmhvMGbxMNDLtim5o%3D' (2024-07-24)
• Updated input 'nixpkgs-stable':
    'github:nixos/nixpkgs/63d37ccd2d178d54e7fb691d7ec76000740ea24a?narHash=sha256-7cCC8%2BTdq1%2B3OPyc3%2BgVo9dzUNkNIQfwSDJ2HSi2u3o%3D' (2024-07-21)
  → 'github:nixos/nixpkgs/d0907b75146a0ccc1ec0d6c3db287ec287588ef6?narHash=sha256-PhmkdTJs2SfqKzSyDB74rDKp1MH4mGk0pG/%2BWqrnGEw%3D' (2024-07-24)
• Updated input 'nixpkgs-unstable':
    'github:nixos/nixpkgs/453402b94f39f968a7c27df28e060f69e4a50c3b?narHash=sha256-iQ%2Bquy3A1EKeFyLyAtjhgSvZHH7r%2BxybXZkxMhasN4I%3D' (2024-07-22)
  → 'github:nixos/nixpkgs/4f02464258baaf54992debfd010a7a3662a25536?narHash=sha256-UNDpwjYxNXQet/g3mgRLsQ9zxrbm9j2JEvP4ijF3AWs%3D' (2024-07-24)
• Updated input 'zig':
    'github:mitchellh/zig-overlay/c7615d701b2a5355a3f3013918b6b945c394e791?narHash=sha256-he5AUpgwVAT/VXtkUOiMsz5cYblXw2qAGs1wADW9ji8%3D' (2024-07-19)
  → 'github:mitchellh/zig-overlay/f2fa4a38dafe0a8257db4f88aa53d03531548eb6?narHash=sha256-tTv4dMBzdJ0SiCdLy3dOe1EUzXBr1MoGQ97olNHqCuQ%3D' (2024-07-26)

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