flake.lock: Update

Flake lock file updates:

• Updated input 'nixos-amis':
    'https://api.flakehub.com/f/pinned/NixOS/amis/0.1.289%2Brev-1545e600c5c5aa4a893e328c9d661c7604718482/019a7278-f163-7d8c-9423-ff47eae145e8/source.tar.gz' (2025-11-11)
  → 'https://api.flakehub.com/f/pinned/NixOS/amis/0.1.299%2Brev-807d57694c621496f740dabf0ea150b9d76363a8/019ae939-7332-7b38-b46c-140b4d1138e2/source.tar.gz' (2025-12-04)
• Updated input 'nixos-amis/nixpkgs':
    'https://releases.nixos.org/nixpkgs/nixpkgs-25.11pre868392.e9f00bd89398/nixexprs.tar.xz' (1980-01-01)
  → 'https://releases.nixos.org/nixpkgs/nixpkgs-26.05pre904683.23258e03aaa4/nixexprs.tar.xz' (2025-11-30)
• Updated input 'nixos-amis/treefmt-nix':
    'github:numtide/treefmt-nix/5eda4ee' (2025-09-24)
  → 'github:numtide/treefmt-nix/5b4ee75' (2025-11-12)
• Updated input 'nixpkgs':
    'https://api.flakehub.com/f/pinned/nixos/nixpkgs/0.1.897910%2Brev-89c2b2330e733d6cdb5eae7b899326930c2c0648/019a9888-31f2-7667-abe4-5a1c43721ef0/source.tar.gz' (2025-11-17)
  → 'https://api.flakehub.com/f/pinned/nixos/nixpkgs/0.1.907002%2Brev-f61125a668a320878494449750330ca58b78c557/019af28f-4a47-7f68-a9d7-f6f6e905b8ab/source.tar.gz' (2025-12-05)

Author: github-actions[bot]