flake.lock: Update

Flake lock file updates:

• Updated input 'devenv':
    'github:cachix/devenv/6f9c3d4722aa253631644329f7bda60b1d3d1b97?narHash=sha256-VU%2BOHexL2y6y7yrpEc6bZvYYwoQg6aZK1b4YxT0yZCk%3D' (2025-08-15)
  → 'github:cachix/devenv/c57bded76fa6a885ab1dee2c75216cc23d58b311?narHash=sha256-Gy15%2BKtKc/MyT4L9Ad/2wkXQvDiMkhtKy9Tnn3%2BkPww%3D' (2025-09-11)
• Updated input 'flake-parts':
    'github:hercules-ci/flake-parts/af66ad14b28a127c5c0f3bbb298218fc63528a18?narHash=sha256-pHYj8gUBapuUzKV/kN/tR3Zvqc7o6gdFB9XKXIp1SQ8%3D' (2025-08-06)
  → 'github:hercules-ci/flake-parts/4524271976b625a4a605beefd893f270620fd751?narHash=sha256-%2BuWLQZccFHwqpGqr2Yt5VsW/PbeJVTn9Dk6SHWhNRPw%3D' (2025-09-01)
• Updated input 'nixpkgs':
    'github:NixOS/nixpkgs/3385ca0cd7e14c1a1eb80401fe011705ff012323?narHash=sha256-Hu/gTDoi4uy6TAKISPHQusSMy8U6xUbLSDjKBYdhDIY%3D' (2025-08-13)
  → 'github:NixOS/nixpkgs/8cd5ce828d5d1d16feff37340171a98fc3bf6526?narHash=sha256-mCxPABZ6jRjUQx3bPP4vjA68ETbPLNz9V2pk9tO7pRQ%3D' (2025-09-10)
• Updated input 'treefmt-nix':
    'github:numtide/treefmt-nix/7d81f6fb2e19bf84f1c65135d1060d829fae2408?narHash=sha256-2vX8QjO5lRsDbNYvN9hVHXLU6oMl%2BV/PsmIiJREG4rE%3D' (2025-08-10)
  → 'github:numtide/treefmt-nix/1aabc6c05ccbcbf4a635fb7a90400e44282f61c4?narHash=sha256-F1oFfV51AE259I85av%2BMAia221XwMHCOtZCMcZLK2Jk%3D' (2025-08-31)

Author: github-actions[bot]