flake.lock: Update (#468)

Flake lock file updates:

• Updated input 'flake-parts':
    'github:hercules-ci/flake-parts/b253292d9c0a5ead9bc98c4e9a26c6312e27d69f' (2024-02-01)
  → 'github:hercules-ci/flake-parts/f7b3c975cf067e56e7cda6cb098ebe3fb4d74ca2' (2024-03-01)
• Updated input 'flake-parts/nixpkgs-lib':
    'github:NixOS/nixpkgs/97b17f32362e475016f942bbdfda4a4a72a8a652?dir=lib' (2024-01-29)
  → 'github:NixOS/nixpkgs/1536926ef5621b09bba54035ae2bb6d806d72ac8?dir=lib' (2024-02-29)
• Updated input 'nixpkgs':
    'github:NixOS/nixpkgs/cbc4211f0afffe6dfd2478a62615dd5175a13f9a' (2024-02-23)
  → 'github:NixOS/nixpkgs/1536926ef5621b09bba54035ae2bb6d806d72ac8' (2024-02-29)
• Updated input 'rust-overlay':
    'github:oxalica/rust-overlay/9b24383d77f598716fa0cbb8b48c97249f5ee1af' (2024-02-24)
  → 'github:oxalica/rust-overlay/6e6fde31711e699be2e7fb67aae1c7e23ef606e0' (2024-03-02)

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