flake.lock: Update

Flake lock file updates:

• Updated input 'flake-parts':
    'github:hercules-ci/flake-parts/49f0870db23e8c1ca0b5259734a02cd9e1e371a1?narHash=sha256-F82%2BgS044J1APL0n4hH50GYdPRv/5JWm34oCJYmVKdE%3D' (2025-06-01)
  → 'github:hercules-ci/flake-parts/9305fe4e5c2a6fcf5ba6a3ff155720fbe4076569?narHash=sha256-tYBdgS56eXYaWVW3fsnPQ/nFlgWi/Z2Ymhyu21zVM98%3D' (2025-06-08)
• Updated input 'nixpkgs':
    'git+https://github.com/NixOS/nixpkgs?ref=nixos-unstable-small&rev=ebd3748a6b97de45844aa62701b81df35c5c1269&shallow=1' (2025-06-06)
  → 'git+https://github.com/NixOS/nixpkgs?ref=nixos-unstable-small&rev=340deb49293d447dba3038321be090a4bec9981c&shallow=1' (2025-06-28)
• Updated input 'treefmt-nix':
    'github:numtide/treefmt-nix/a05be418a1af1198ca0f63facb13c985db4cb3c5?narHash=sha256-eEy8cuS0mZ2j/r/FE0/LYBSBcIs/MKOIVakwHVuqTfk%3D' (2025-06-06)
  → 'github:numtide/treefmt-nix/ac8e6f32e11e9c7f153823abc3ab007f2a65d3e1?narHash=sha256-0IEdQB1nS%2BuViQw4k3VGUXntjkDp7aAlqcxdewb/hAc%3D' (2025-06-26)

Author: zowoq