flake.lock: Update

Flake lock file updates:

• Updated input 'nixpkgs':
    'github:NixOS/nixpkgs/3566ab7246670a43abd2ffa913cc62dad9cdf7d5?narHash=sha256-AKU6qqskl0yf2%2BJdRdD0cfxX4b9x3KKV5RqA6wijmPM%3D' (2024-12-13)
  → 'github:NixOS/nixpkgs/d70bd19e0a38ad4790d3913bf08fcbfc9eeca507?narHash=sha256-4EVBRhOjMDuGtMaofAIqzJbg4Ql7Ai0PSeuVZTHjyKQ%3D' (2024-12-19)
• Updated input 'nixpkgs-unstable':
    'github:NixOS/nixpkgs/71a6392e367b08525ee710a93af2e80083b5b3e2?narHash=sha256-0XovF7BYP50rTD2v4r55tR5MuBLet7q4xIz6Rgh3BBU%3D' (2024-12-13)
  → 'github:NixOS/nixpkgs/4989a246d7a390a859852baddb1013f825435cee?narHash=sha256-kMBQ5PRiFLagltK0sH%2B08aiNt3zGERC2297iB6vrvlU%3D' (2024-12-17)
• Updated input 'typst-dev':
    'github:typst/typst/a3ad0a0bba3ce3abb1d8ed84656f54cc2d74be25?narHash=sha256-OGk0Dhd84V7R/QRqxj/cNAnKeQuhZ57n50UAKcL/81Q%3D' (2024-12-13)
  → 'github:typst/typst/bb38a01d0625d5bdab0af50daf479e60c774d90e?narHash=sha256-pV1jf4KPti/RGn7YQmOg9T3GWvngFLQ8zdi4uUHzYOc%3D' (2024-12-20)
• Updated input 'typst-packages':
    'github:typst/packages/ee5411a2c68820bd14235107fc03dcb6333b3e72?narHash=sha256-mvqEbGHCizv9/XetjX/aydwohW7ET8%2BHtsDdciOpMv8%3D' (2024-12-13)
  → 'github:typst/packages/b6c3c7cfffda6661dc8eb5de38602fcec5aa72d3?narHash=sha256-xpjaqcgLLvTyxDaFDWrHxAlvJCXFisELZNrpdHYGV9o%3D' (2024-12-21)