flake.lock: Update (#54)

Flake lock file updates:

• Updated input 'fenix':
    'github:nix-community/fenix/344945339ec0e01c62195b849ae8a67eaa1004a3' (2024-08-11)
  → 'github:nix-community/fenix/73b4e46c0f6e93b104f5a9c9573bd2ad0e319061' (2024-08-18)
• Updated input 'fenix/rust-analyzer-src':
    'github:rust-lang/rust-analyzer/0daeb5c0b05cfdf2101b0f078c27539099bf38e6' (2024-08-10)
  → 'github:rust-lang/rust-analyzer/fa003262474185fd62168379500fe906b331824b' (2024-08-17)
• Updated input 'nixpkgs':
    'github:nixos/nixpkgs/5e0ca22929f3342b19569b21b2f3462f053e497b' (2024-08-09)
  → 'github:nixos/nixpkgs/c3aa7b8938b17aebd2deecf7be0636000d62a2b9' (2024-08-14)
• Updated input 'poetry2nix':
    'github:nix-community/poetry2nix/4a1c112ff0c67f496573dc345bd0b2247818fc29' (2024-08-11)
  → 'github:nix-community/poetry2nix/d650118bce34c0238b9b54f23f7f173f9e4db867' (2024-08-17)

Co-authored-by: github-actions[bot] <41898282+github-actions[bot]@users.noreply.github.com>