flake.lock: Update (#603)

Flake lock file updates:

• Updated input 'nixpkgs':
    'github:NixOS/nixpkgs/b833ff01a0d694b910daca6e2ff4a3f26dee478c?narHash=sha256-tLGCFEFTB5TaOKkpfw3iYT9dnk4awTP/q4w%2BROpMfuw%3D' (2024-09-01)
  → 'github:NixOS/nixpkgs/9bb1e7571aadf31ddb4af77fc64b2d59580f9a39?narHash=sha256-Yd0FK9SkWy%2BZPuNqUgmVPXokxDgMJoGuNpMEtkfcf84%3D' (2024-09-05)
• Updated input 'nixpkgs-stable':
    'github:NixOS/nixpkgs/556533a23879fc7e5f98dd2e0b31a6911a213171?narHash=sha256-5NctRsoE54N86nWd0psae70YSLfrOek3Kv1e8KoXe/0%3D' (2024-07-21)
  → 'github:NixOS/nixpkgs/dc454045f5b5d814e5862a6d057e7bb5c29edc05?narHash=sha256-vNv%2BaJUW5/YurRy1ocfvs4q/48yVESwlC/yHzjkZSP8%3D' (2024-09-08)

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