flake.lock: Update

Flake lock file updates:

• Updated input 'fenix':
    'github:nix-community/fenix/c684a289edf43cfc5cd1bea7c1b61ab9a0fba99c?narHash=sha256-6fkf0JP1OCVxmyBZRdEVQu9wBwLyTI%2BidTISoijxpQE%3D' (2025-11-15)
  → 'github:nix-community/fenix/a050dbbf2392a231c622ee0884621d792ce8df04?narHash=sha256-v89okuKjE4tBqozieL7cXZAM5yWjOX5h9gaNdYhyu5I%3D' (2025-11-29)
• Updated input 'fenix/rust-analyzer-src':
    'github:rust-lang/rust-analyzer/2efc80078029894eec0699f62ec8d5c1a56af763?narHash=sha256-rMfWMCOo/pPefM2We0iMBLi2kLBAnYoB9thi4qS7uk4%3D' (2025-11-11)
  → 'github:rust-lang/rust-analyzer/36fa19936b648efeec6f43865f04062e2401baa6?narHash=sha256-6BMEbl8YwyH55RaW6d1pUpvcAxqQ05m/20HCT1j/L8Y%3D' (2025-11-28)
• Updated input 'nixpkgs':
    'github:NixOS/nixpkgs/1d4c88323ac36805d09657d13a5273aea1b34f0c?narHash=sha256-esRhOS0APE6k40Hs/jjReXg%2Brx%2BJ5LkWw7cuWFKlwYA%3D' (2025-11-15)
  → 'github:NixOS/nixpkgs/59b6c96beacc898566c9be1052ae806f3835f87d?narHash=sha256-UoliURDJFaOolycBZYrjzd9Cc66zULEyHqGFH3QHEq0%3D' (2025-11-29)

Author: github-actions[bot]