flake.lock: Update

Flake lock file updates:

• Updated input 'nixpkgs':
    'https://api.flakehub.com/f/pinned/NixOS/nixpkgs/0.2405.634054%2Brev-4a92571f9207810b559c9eac203d1f4d79830073/01914d63-b212-712f-bb11-24565c742847/source.tar.gz?narHash=sha256-%2BCHVZnTnIYRLYsARInHYoWkujzcRkLY/gXm3s5bE52o%3D' (2024-08-13)
  → 'https://api.flakehub.com/f/pinned/NixOS/nixpkgs/0.2405.634418%2Brev-2527da1ef492c495d5391f3bcf9c1dd9f4514e32/019193c7-3325-7c5c-9d46-f2d05135ea41/source.tar.gz?narHash=sha256-XROVLf9ti4rrNCFLr%2BDmXRZtPjCQTW4cYy59owTEmxk%3D' (2024-08-24)