flake.lock: Update

Flake lock file updates:

• Updated input 'nixpkgs':
    'github:NixOS/nixpkgs/2249940a589f912bbbf7586c7d3f71f588dacdfd?narHash=sha256-MoItHaLKoO/JuKQF87XpcnQEIlyb/X/9ipU8SLMv6mw%3D' (2024-07-01)
  → 'github:NixOS/nixpkgs/849492e6e2fae04a8add2e2fe692503f96ad1587?narHash=sha256-QygJr6Nk5Fuc9LNGcdyiqAchIwTzN/9m/3cVJp3qH/4%3D' (2024-08-01)
• Updated input 'pre-commit-hooks':
    'github:cachix/pre-commit-hooks.nix/0ff4381bbb8f7a52ca4a851660fc7a437a4c6e07?narHash=sha256-F1h%2BXIsGKT9TkGO3omxDLEb/9jOOsI6NnzsXFsZhry4%3D' (2024-06-24)
  → 'github:cachix/pre-commit-hooks.nix/f451c19376071a90d8c58ab1a953c6e9840527fd?narHash=sha256-6FPUl7HVtvRHCCBQne7Ylp4p%2BdpP3P/OYuzjztZ4s70%3D' (2024-07-15)
• Updated input 'pre-commit-hooks/nixpkgs-stable':
    'github:NixOS/nixpkgs/03d771e513ce90147b65fe922d87d3a0356fc125?narHash=sha256-0Y8IrGhRmBmT7HHXlxxepg2t8j1X90%2B%2BqRN3lukGaIk%3D' (2024-06-19)
  → 'github:NixOS/nixpkgs/194846768975b7ad2c4988bdb82572c00222c0d7?narHash=sha256-NGKVY4PjzwAa4upkGtAMz1npHGoRzWotlSnVlqI40mo%3D' (2024-07-07)