flake.lock: Update

Flake lock file updates:

• Updated input 'nixpkgs':
    'github:NixOS/nixpkgs/2631b0b7abcea6e640ce31cd78ea58910d31e650?narHash=sha256-LWqduOgLHCFxiTNYi3Uj5Lgz0SR%2BXhw3kr/3Xd0GPTM%3D' (2025-04-12)
  → 'github:NixOS/nixpkgs/b024ced1aac25639f8ca8fdfc2f8c4fbd66c48ef?narHash=sha256-fusHbZCyv126cyArUwwKrLdCkgVAIaa/fQJYFlCEqiU%3D' (2025-04-17)
• Updated input 'nixpkgs-unstable':
    'github:NixOS/nixpkgs/18dd725c29603f582cf1900e0d25f9f1063dbf11?narHash=sha256-awS2zRgF4uTwrOKwwiJcByDzDOdo3Q1rPZbiHQg/N38%3D' (2025-04-13)
  → 'github:NixOS/nixpkgs/ebe4301cbd8f81c4f8d3244b3632338bbeb6d49c?narHash=sha256-5RJTdUHDmj12Qsv7XOhuospjAjATNiTMElplWnJE9Hs%3D' (2025-04-17)
• Updated input 'typst-dev':
    'github:typst/typst/c21c1c391b48f843c8671993a28eaf1fe0d40b89?narHash=sha256-z/D0P9AMp5/9DKSYyr5MrQBpQ5YnNkaAZTLfz/abQn8%3D' (2025-04-10)
  → 'github:typst/typst/3e6691a93bd8c2947bd22e3c7344c2fab7d1241f?narHash=sha256-ldymLyI3qFUUk26f2x5jkcc9hPnuXJKXxmJ0GoPvxbk%3D' (2025-04-18)
• Updated input 'typst-packages':
    'github:typst/packages/c73b8832d4281d55dc1f3c139bc239a6083ed6a3?narHash=sha256-PVWV1talDLLAHonb5YT2drpk8dc19m5uifM/cqjlt7M%3D' (2025-04-11)
  → 'github:typst/packages/7a767b6919f48bb09bc8fecfc13708c1f9b215e7?narHash=sha256-zTLAev9KgwJ3pHM%2B9ugaM6r6%2B2SfdQWwIbov3Q9qw%2Bk%3D' (2025-04-18)

Author: github-actions[bot]