flake.lock: Update (#20)

Flake lock file updates:

• Updated input 'crane':
    'github:ipetkov/crane/c7e015a5fcefb070778c7d91734768680188a9cd?narHash=sha256-zdZek5FXK/k95J0vnLF0AMnYuZl4AjARq83blKuJBYY%3D' (2025-02-04)
  → 'github:ipetkov/crane/112e6591b2d6313b1bd05a80a754a8ee42432a7e?narHash=sha256-LrMDRuwAlRFD2T4MgBSRd1s2VtOE%2BVl1oMCNu3RpPE0%3D' (2025-02-08)
• Updated input 'nixpkgs':
    'github:NixOS/nixpkgs/f7384aacd0ecd28681a99269ac0dff2c3a805d63?narHash=sha256-1MABVDwNpAUrUDvyM6PlHlAB1eTWAX0eNYCzdsZ54NI%3D' (2025-02-04)
  → 'github:NixOS/nixpkgs/fa35a3c8e17a3de613240fea68f876e5b4896aec?narHash=sha256-7Fu7oazPoYCbDzb9k8D/DdbKrC3aU1zlnc39Y8jy/s8%3D' (2025-02-08)
• Updated input 'rust-overlay':
    'github:oxalica/rust-overlay/347fb01821c3cd8d54e563d244a599c1e27a393d?narHash=sha256-DHVyKCiIQVDqjYoVU2j7UaLNIlOnpB9sP1cPRNRpqvY%3D' (2025-02-05)
  → 'github:oxalica/rust-overlay/f61820fa2c3844d6940cce269a6afdec30aa2e6c?narHash=sha256-3DtLkjQFlIUOXw3TBH%2BiP0jglpqO6Lv2KaQc%2BADg39I%3D' (2025-02-09)

Co-authored-by: github-actions[bot] <github-actions[bot]@users.noreply.github.com>