flake.lock: Update

Flake lock file updates:

• Updated input 'advisory-db':
    'github:rustsec/advisory-db/ffa26704690a3dc403edcd94baef103ee48f66eb?narHash=sha256-WxIWw1mSPJVU1JfIcTdIubU5UoIwwR8h7UcXop/6htg%3D' (2025-01-22)
  → 'github:rustsec/advisory-db/5248f077160ebbedbc62f32356a7eb08823fc91b?narHash=sha256-kYLaeF0Qw/rn4p3mve8qZTPe39ujPmDrE7Ct3XtQTzE%3D' (2025-02-01)
• Updated input 'fenix':
    'github:nix-community/fenix/2f721f527886f801403f389a9cabafda8f1e3b7f?narHash=sha256-ubCW9Jy7ZUOF354bWxTgLDpVnTvIpNr6qR4H/j7I0oo%3D' (2025-01-25)
  → 'github:nix-community/fenix/de3ea31eb651b663449361f77d9c1e8835290470?narHash=sha256-TC3xA%2B%2BKgprECm/WPsLUd%2Ba77MObZPElCW6eAsjVW1k%3D' (2025-02-01)
• Updated input 'fenix/rust-analyzer-src':
    'github:rust-lang/rust-analyzer/6e4c29f7ce18cea7d3d31237a4661ab932eab636?narHash=sha256-U4pl3Hi0lT6GP4ecN3q9wdD2sdaKMbmD/5NJ1NdJ9AM%3D' (2025-01-24)
  → 'github:rust-lang/rust-analyzer/3c2aca1e5e9fbabb4e05fc4baa62e807aadc476a?narHash=sha256-1zhfA5NBqin0Z79Se85juvqQteq7uClJMEb7l2pdDUY%3D' (2025-01-30)
• Updated input 'nixpkgs':
    'github:msfjarvis/nixpkgs/ba342972eb151d7155d5ca616a76aeb4f75d49a3?narHash=sha256-aWkIAB98Mcy5EBX6fUBWQccX2BM5CMeKnhJV81YLwiw%3D' (2025-01-25)
  → 'github:msfjarvis/nixpkgs/20596d60405b367cb697f12ca9cc5d67680e510c?narHash=sha256-uTqkH0%2Bd8TEV8ajnsfLLHgu5M80BETf36aeUQ31MfdQ%3D' (2025-02-01)