flake.lock: Update

Flake lock file updates:

• Updated input 'fenix':
    'github:nix-community/fenix/81afc33397436c678482a1560bbc810cc3504dbc?narHash=sha256-NcfLaETnNMPHTlu7/oTrihCjTL6G2DIe6lHZ68o2n8w%3D' (2024-12-19)
  → 'github:nix-community/fenix/d99d2a562b9c9d5f0e4399e5bb677b37a791c7eb?narHash=sha256-awAp1Qe%2Bc95PQxP7v%2BZfse%2Bw3URaP3UQLCRlaPMzYtE%3D' (2025-02-03)
• Updated input 'fenix/rust-analyzer-src':
    'github:rust-lang/rust-analyzer/27fac08c82210837a2ac84fa5e39eee6993f1605?narHash=sha256-IGe/elaXn5XXA62RIL9OuLMq1vgrUCm%2BbYPqYCZJ7Ug%3D' (2024-12-18)
  → 'github:rust-lang/rust-analyzer/f3998f7f8a197596c5edf72e937996e6674b423b?narHash=sha256-sLLW0S7OGlFYgNvAQnqWK1Ws5V1YNGvfXHdWoZ91CeI%3D' (2025-02-02)
• Updated input 'flake-parts':
    'github:hercules-ci/flake-parts/205b12d8b7cd4802fbcb8e8ef6a0f1408781a4f9?narHash=sha256-4pDvzqnegAfRkPwO3wmwBhVi/Sye1mzps0zHWYnP88c%3D' (2024-12-04)
  → 'github:hercules-ci/flake-parts/32ea77a06711b758da0ad9bd6a844c5740a87abd?narHash=sha256-7H9XgNiGLKN1G1CgRh0vUL4AheZSYzPm%2BzmZ7vxbJdo%3D' (2025-02-01)
• Updated input 'nixpkgs':
    'github:NixOS/nixpkgs/d3c42f187194c26d9f0309a8ecc469d6c878ce33?narHash=sha256-cHar1vqHOOyC7f1%2BtVycPoWTfKIaqkoe1Q6TnKzuti4%3D' (2024-12-17)
  → 'github:NixOS/nixpkgs/3a228057f5b619feb3186e986dbe76278d707b6e?narHash=sha256-xvTo0Aw0%2Bveek7hvEVLzErmJyQkEcRk6PSR4zsRQFEc%3D' (2025-02-01)
• Updated input 'rust-overlay':
    'github:oxalica/rust-overlay/573c674a3ad06e8a525263185ebef336a411d1d5?narHash=sha256-BxQ/4JuHEi0zRjF0P8B5xnbXOLulgsK2gfwVRXGZ4a4%3D' (2024-12-19)
  → 'github:oxalica/rust-overlay/35c6f8c4352f995ecd53896200769f80a3e8f22d?narHash=sha256-GdyT9QEUSx5k/n8kILuNy83vxxdyUfJ8jL5mMpQZWfw%3D' (2025-02-03)