flake.lock: Update

Flake lock file updates:

• Updated input 'crane':
    'github:ipetkov/crane/6849911446e18e520970cc6b7a691e64ee90d649' (2023-11-09)
  → 'github:ipetkov/crane/0efe36f9232e0961512572883ba9c995aa1f54b1' (2024-01-03)
• Updated input 'flake-utils':
    'github:numtide/flake-utils/ff7b65b44d01cf9ba6a71320833626af21126384' (2023-09-12)
  → 'github:numtide/flake-utils/4022d587cbbfd70fe950c1e2083a02621806a725' (2023-12-04)
• Updated input 'nix-input':
    'github:nixos/nix/1d86bb4f70ee5c2d06810f21bf7cd057ed46712c' (2023-11-17)
  → 'github:nixos/nix/8e865f3aba526394ca333efe7258bd8db0050fbb' (2024-01-06)
• Added input 'nix-input/libgit2':
    'github:libgit2/libgit2/45fd9ed7ae1a9b74b957ef4f337bc3c8b3df01b5' (2023-10-18)
• Removed input 'nix-input/lowdown-src'
• Updated input 'nix-input/nixpkgs':
    'github:NixOS/nixpkgs/9eb24edd6a0027fed010ccfe300a9734d029983c' (2023-11-01)
  → 'github:NixOS/nixpkgs/2c9c58e98243930f8cb70387934daa4bc8b00373' (2023-12-31)
• Updated input 'nixpkgs':
    'github:NixOS/nixpkgs/bf744fe90419885eefced41b3e5ae442d732712d' (2023-11-14)
  → 'github:NixOS/nixpkgs/bd645e8668ec6612439a9ee7e71f7eac4099d4f6' (2024-01-02)
• Updated input 'pre-commit-hooks':
    'github:cachix/pre-commit-hooks.nix/e558068cba67b23b4fbc5537173dbb43748a17e8' (2023-11-15)
  → 'github:cachix/pre-commit-hooks.nix/9d3d7e18c6bc4473d7520200d4ddab12f8402d38' (2023-12-30)
• Updated input 'rust-overlay':
    'github:oxalica/rust-overlay/e3ebc177291f5de627d6dfbac817b4a661b15d1c' (2023-11-17)
  → 'github:oxalica/rust-overlay/a127cccf7943beae944953963ba118d643299c3b' (2024-01-06)
• Updated input 'topiary':
    'github:tweag/topiary/79b93527d9bd59533f9a79fe490567963193fafd' (2023-10-23)
  → 'github:tweag/topiary/4d48c236a1fd25824384241b42239ffff8cb3a04' (2023-12-21)