flake/dev/flake.lock: Update

Flake lock file updates:

• Updated input 'dev-nixpkgs':
    'github:NixOS/nixpkgs/cab778239e705082fe97bb4990e0d24c50924c04?narHash=sha256-lgmUyVQL9tSnvvIvBp7x1euhkkCho7n3TMzgjdvgPoU%3D' (2025-08-04)
  → 'github:NixOS/nixpkgs/a683adc19ff5228af548c6539dbc3440509bfed3?narHash=sha256-fbnmAwTQkuXHKBlcL5Nq1sMAzd3GFqCOQgEQw6Hy0Ak%3D' (2025-08-05)
• Updated input 'home-manager':
    'github:nix-community/home-manager/ad5d2b4aa770fdc74c80fd682fee0b00a8ad7991?narHash=sha256-QN9yZ1L5EmR16NNM%2BhNNzMjARk%2BFPjUeSE/ds4Kms0E%3D' (2025-08-06)
  → 'github:nix-community/home-manager/475d35797d9537354d825260cf583114537affc2?narHash=sha256-qAzCtmKkMz40xFgP9KN%2BTCKjVieK4u04EWwl2KvVk0E%3D' (2025-08-07)
• Updated input 'treefmt-nix':
    'github:numtide/treefmt-nix/861c262ae97d60a3e5be305349a56779763a98ab?narHash=sha256-jw437PMQtx652SpATpvHnnIRrtvwMMz2pNwZKn8QeOg%3D' (2025-08-06)
  → 'github:numtide/treefmt-nix/1298185c05a56bff66383a20be0b41a307f52228?narHash=sha256-B%2B3g9%2B76KlGe34Yk9za8AF3RL%2BlnbHXkLiVHLjYVOAc%3D' (2025-08-06)

Author: nixvim-ci[bot]