flake.lock: Update (#1954)

Automated changes by the
[update-flake-lock](https://github.com/DeterminateSystems/update-flake-lock)
GitHub Action.

```
Flake lock file updates:

• Updated input 'git-hooks-nix':
    'github:cachix/git-hooks.nix/a8ca480175326551d6c4121498316261cbb5b260?narHash=sha256-Fok2AmefgVA0%2Beprw2NDwqKkPGEI5wvR%2BtwiZagBvrg%3D' (2026-02-01)
  → 'github:cachix/git-hooks.nix/5eaaedde414f6eb1aea8b8525c466dc37bba95ae?narHash=sha256-kck%2BvIbGOaM/dHea7aTBxdFYpeUl/jHOy5W3eyRvVx8%3D' (2026-02-10)
• Updated input 'git-hooks-nix/nixpkgs':
    'github:NixOS/nixpkgs/a672be65651c80d3f592a89b3945466584a22069?narHash=sha256-EYHSjVM4Ox4lvCXUMiKKs2vETUSL5mx%2BJ2FfutM7T9w%3D' (2025-12-05)
  → 'github:NixOS/nixpkgs/47472570b1e607482890801aeaf29bfb749884f6?narHash=sha256-Vy%2BG%2BF%2B3E/Tl%2BGMNgiHl9Pah2DgShmIUBJXmbiQPHbI%3D' (2026-02-02)
• Updated input 'nixpkgs':
    'github:NixOS/nixpkgs/251b5cabd846b36d46ab9ed931357d0764195c84?narHash=sha256-qiKSJWtwzfL%2BWEVu2EGNu6TzExLA/zEqGB7sR1lV4jY%3D' (2026-02-07)
  → 'github:NixOS/nixpkgs/ade8a1892d8f76616100c4d0de56f642ac4b004f?narHash=sha256-6/VriPJZPqQfOyujd1AEjSYzgP/In4dtmQAbvhkkhyI%3D' (2026-02-14)
• Updated input 'released-nix-stable':
    'github:nixos/nix/9bf642b88d72a9dfd2fbb69f1bbba5a3098da49b?narHash=sha256-bjkycwYUs2TS5pYcqlJ2yA2W8gc6iq%2BIs1kNSY%2BQPHk%3D' (2026-01-27)
  → 'github:nixos/nix/377fc95bce8714e54883f40f7ac7edbfc63801a4?narHash=sha256-2Mga4e9ZtOPLwYqF4%2BhcjdsTImcA7TKUvDDfaF7jqEo%3D' (2026-02-13)
• Updated input 'released-nix-unstable':
    'github:nixos/nix/3b473c4be5e6abc58aa43271f35ff127af806c55?narHash=sha256-UIoCYiC5lJdQjINLqJX7gT4B/GIz7Ny%2BE3U7Y2HVAd8%3D' (2026-02-07)
  → 'github:nixos/nix/6cbf80a0b05615fcbd137fb1fd40f5d023224c1c?narHash=sha256-x1x/IglxOZbgjbNdPA/LynumHmX%2Btgx19t4GuvrC96I%3D' (2026-02-14)
• Updated input 'released-nixpkgs-stable':
    'github:NixOS/nixpkgs/23d72dabcb3b12469f57b37170fcbc1789bd7457?narHash=sha256-z5NJPSBwsLf/OfD8WTmh79tlSU8XgIbwmk6qB1/TFzY%3D' (2026-02-07)
  → 'github:NixOS/nixpkgs/3aadb7ca9eac2891d52a9dec199d9580a6e2bf44?narHash=sha256-O1XDr7EWbRp%2BkHrNNgLWgIrB0/US5wvw9K6RERWAj6I%3D' (2026-02-14)
• Updated input 'released-nixpkgs-unstable':
    'github:NixOS/nixpkgs/00c21e4c93d963c50d4c0c89bfa84ed6e0694df2?narHash=sha256-AYqlWrX09%2BHvGs8zM6ebZ1pwUqjkfpnv8mewYwAo%2BiM%3D' (2026-02-04)
  → 'github:NixOS/nixpkgs/a82ccc39b39b621151d6732718e3e250109076fa?narHash=sha256-gf2AmWVTs8lEq7z/3ZAsgnZDhWIckkb%2BZnAo5RzSxJg%3D' (2026-02-13)
```

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