flake/dev/flake.lock: Update

Flake lock file updates:

• Updated input 'dev-nixpkgs':
    'github:NixOS/nixpkgs/a683adc19ff5228af548c6539dbc3440509bfed3?narHash=sha256-fbnmAwTQkuXHKBlcL5Nq1sMAzd3GFqCOQgEQw6Hy0Ak%3D' (2025-08-05)
  → 'github:NixOS/nixpkgs/d74de548348c46cf25cb1fcc4b74f38103a4590d?narHash=sha256-Ix7ALeaxv9tW4uBKWeJnaKpYZtZiX4H4Q/MhEmj4XYA%3D' (2025-08-13)
• Updated input 'home-manager':
    'github:nix-community/home-manager/cc2fa2331aebf9661d22bb507d362b39852ac73f?narHash=sha256-ueR1mGX4I4DWfDRRxxMphbKDNisDeMPMusN72VV1%2Bcc%3D' (2025-08-08)
  → 'github:nix-community/home-manager/279ca5addcdcfa31ac852b3ecb39fc372684f426?narHash=sha256-UtYkukiGnPRJ5rpd4W/wFVrLMh8fqtNkqHTPgHEtrqU%3D' (2025-08-13)
• Updated input 'treefmt-nix':
    'github:numtide/treefmt-nix/1298185c05a56bff66383a20be0b41a307f52228?narHash=sha256-B%2B3g9%2B76KlGe34Yk9za8AF3RL%2BlnbHXkLiVHLjYVOAc%3D' (2025-08-06)
  → 'github:numtide/treefmt-nix/7d81f6fb2e19bf84f1c65135d1060d829fae2408?narHash=sha256-2vX8QjO5lRsDbNYvN9hVHXLU6oMl%2BV/PsmIiJREG4rE%3D' (2025-08-10)

Author: nixvim-ci[bot]