flake.lock: Update (#72)

Flake lock file updates:

• Updated input 'fenix':
    'github:nix-community/fenix/9d17341a4f227fe15a0bca44655736b3808e6a03' (2024-10-13)
  → 'github:nix-community/fenix/4002a1ec3486b855f341d2b864ba06b61e73af28' (2024-10-21)
• Updated input 'fenix/rust-analyzer-src':
    'github:rust-lang/rust-analyzer/d7628c0a8b95cadefe89d9a45f9be5ee4898c6b1' (2024-10-12)
  → 'github:rust-lang/rust-analyzer/9323b5385863739d1c113f02e4cf3f2777c09977' (2024-10-20)
• Updated input 'nixpkgs':
    'github:nixos/nixpkgs/5633bcff0c6162b9e4b5f1264264611e950c8ec7' (2024-10-09)
  → 'github:nixos/nixpkgs/4c2fcb090b1f3e5b47eaa7bd33913b574a11e0a0' (2024-10-18)
• Updated input 'poetry2nix':
    'github:nix-community/poetry2nix/8a18db56dd62edd26458a87e4d335b7df84c3f3f' (2024-10-10)
  → 'github:nix-community/poetry2nix/e67cc181b5bdf5aa46f1340fa9acd3910f6fb122' (2024-10-17)

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