flake.lock: Update (#145)

Flake lock file updates:

• Updated input 'ghostty':
    'github:ghostty-org/ghostty/a2445359c40ba66f36157359c0ae92509b7f005d?narHash=sha256-JGvxWgyrZqo86/8LMJbiu/MlB0I%2BrEzlP%2BKcp1QMpbY%3D' (2025-01-12)
  → 'github:ghostty-org/ghostty/ff9414d9ea7b16a375d41cde8f6f193de7e5db72?narHash=sha256-OLly4X2kN1tDb2gMYcWeim6uJECPoc52ltJsz1iD5Ug%3D' (2025-01-15)
• Updated input 'home-manager-unstable':
    'github:nix-community/home-manager/2532b500c3ed2b8940e831039dcec5a5ea093afc?narHash=sha256-ZOaGwa%2BWnB7Zn3YXimqjmIugAnHePdXCmNu%2BAHkq808%3D' (2025-01-10)
  → 'github:nix-community/home-manager/fc52a210b60f2f52c74eac41a8647c1573d2071d?narHash=sha256-TY0jUwR3EW0fnS0X5wXMAVy6h4Z7Y6a3m%2BYq%2B%2BC9AyE%3D' (2025-01-13)
• Updated input 'nixpkgs-stable':
    'github:nixos/nixpkgs/1dab772dd4a68a7bba5d9460685547ff8e17d899?narHash=sha256-ibkQrMHxF/7TqAYcQE%2BtOnIsSEzXmMegzyBWza6uHKM%3D' (2025-01-10)
  → 'github:nixos/nixpkgs/9c6b49aeac36e2ed73a8c472f1546f6d9cf1addc?narHash=sha256-i/UJ5I7HoqmFMwZEH6vAvBxOrjjOJNU739lnZnhUln8%3D' (2025-01-14)
• Updated input 'nixpkgs-unstable':
    'github:nixos/nixpkgs/2f9e2f85cb14a46410a1399aa9ea7ecf433e422e?narHash=sha256-FWlPMUzp0lkQBdhKlPqtQdqmp%2B/C%2B1MBiEytaYfrCTY%3D' (2025-01-12)
  → 'github:nixos/nixpkgs/0bd024d34eb07cef235f94258423f40a41182088?narHash=sha256-Jzq/EKtSxOCA9hFuovQGlzOuRA8p9cB4mMYWUeCW4FA%3D' (2025-01-15)
• Updated input 'zig':
    'github:mitchellh/zig-overlay/66d4432b253a044f9a22354daa12b914cc56f8f3?narHash=sha256-MCdfMMi2n7ucVT8zQ4sjk3MDZZFwkuBfn1N2P6G4u%2Bc%3D' (2025-01-11)
  → 'github:mitchellh/zig-overlay/1b619e844cf37dcf54dff17a1f58bad6c4527f1a?narHash=sha256-qJprATSI7OIJcA0kA4jEkWzp5S8U3TvNcAnArRAtlEM%3D' (2025-01-15)

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