flake.lock: Update

Flake lock file updates:

• Updated input 'catppuccin':
    'github:catppuccin/nix/b32de96c3c5384c83b0f4d741ec58a7f97c9ab11?narHash=sha256-IVFUQV6egGQHnm%2BI183OT%2B4ct/ka1IWA5u/0A9I/YV4%3D' (2025-07-28)
  → 'github:catppuccin/nix/4bf9357f5662e396276f7f08756085e56a256971?narHash=sha256-LTft9KnPG/Oov4Y5TD3H3fG3%2BUuOyFkkGUCLv7f0X4k%3D' (2025-07-29)
• Updated input 'home-manager':
    'github:nix-community/home-manager/2f588d275ebd8243be6c29e7bf3ec7409baa0aa7?narHash=sha256-OjnjoalP00CyV34zg6T%2BUn2QoYiHCdRvMbqrweopyyY%3D' (2025-07-29)
  → 'github:nix-community/home-manager/ab14805267c132c5e9ac66129ca5361abd592a3a?narHash=sha256-Shx91k6pLdX8wK6LchsHRXWAWODvy6fHAbUqOmye43A%3D' (2025-07-29)
• Updated input 'nixpkgs-master':
    'github:NixOS/nixpkgs/1e8f965e4e89332e299d6863fbd44a7224485ffd?narHash=sha256-%2B/0X4wpuqm%2BBChLcv9hg5/dGp5oWhCe%2Bk6Mk%2BL0oaao%3D' (2025-07-29)
  → 'github:NixOS/nixpkgs/eaa9fd315faf44750c40885f36776f699309756e?narHash=sha256-YKyBYRqtnU7MV/BLMKuPWWoh0tDul2eJ2tfk80XpnYA%3D' (2025-07-29)
• Updated input 'nixpkgs-unstable':
    'github:nixos/nixpkgs/648f70160c03151bc2121d179291337ad6bc564b?narHash=sha256-FK8iq76wlacriq3u0kFCehsRYTAqjA9nfprpiSWRWIc%3D' (2025-07-28)
  → 'github:nixos/nixpkgs/871381d997e4a063f25a3994ce8a9ac595246610?narHash=sha256-J1P0aQymehe8AHsID9wwoMjbaYrIB2eH5HftoXhF9xk%3D' (2025-07-29)

Author: khanelibot[bot]