flake.lock: Update

Flake lock file updates:

• Updated input 'devenv':
    'github:cachix/devenv/f81cf7dc4cbfa46de11618af94e5983c5e600d8c?narHash=sha256-RfNqLS5f9s3aiRZIOjSbM8Vz7x2dT/7zwJhyt9TLEmE%3D' (2024-12-19)
  → 'github:cachix/devenv/991abff153b995192bf36655394246fc97ba8627?narHash=sha256-n8Ww/v5eCKi0%2BzGe%2B5nfAPpxGsYu4MRWokWyzryswS4%3D' (2024-12-26)
• Updated input 'nixpkgs':
    'github:NixOS/nixpkgs/b47fd6fa00c6afca88b8ee46cfdb00e104f50bca?narHash=sha256-nbG9TijTMcfr%2Bau7ZVbKpAhMJzzE2nQBYmRvSdXUD8g%3D' (2024-12-19)
  → 'github:NixOS/nixpkgs/4005c3ff7505313cbc21081776ad0ce5dfd7a3ce?narHash=sha256-VIAjBr1qGcEbmhLwQJD6TABppPMggzOvqFsqkDoMsAY%3D' (2024-12-25)
• Updated input 'treefmt-nix':
    'github:numtide/treefmt-nix/65712f5af67234dad91a5a4baee986a8b62dbf8f?narHash=sha256-MMi74%2BWckoyEWBRcg/oaGRvXC9BVVxDZNRMpL%2B72wBI%3D' (2024-12-20)
  → 'github:numtide/treefmt-nix/9e09d30a644c57257715902efbb3adc56c79cf28?narHash=sha256-8T3K5amndEavxnludPyfj3Z1IkcFdRpR23q%2BT0BVeZE%3D' (2024-12-25)