flake.lock: Update

Flake lock file updates:

• Updated input 'flake-utils':
    'github:numtide/flake-utils/919d646de7be200f3bf08cb76ae1f09402b6f9b4' (2023-07-11)
  → 'github:numtide/flake-utils/f9e7cf818399d17d347f847525c5a5a8032e4e44' (2023-08-23)
• Updated input 'nixpkgs':
    'github:NixOS/nixpkgs/8365cc56858efc7f25ab4640bfda4fbd8b0b3132' (2023-08-11)
  → 'github:NixOS/nixpkgs/ccf6b469cba7876772fa4c70a0da2b286faeccf6' (2023-08-25)
• Updated input 'pre-commit-hooks':
    'github:cachix/pre-commit-hooks.nix/c5ac3aa3324bd8aebe8622a3fc92eeb3975d317a' (2023-08-11)
  → 'github:cachix/pre-commit-hooks.nix/7e3517c03d46159fdbf8c0e5c97f82d5d4b0c8fa' (2023-08-17)