flake.lock: Update

Flake lock file updates:

• Added input 'bellroy-nix-foss':
    'github:bellroy/bellroy-nix-foss/b6c032e0c9aeb1886538d9db10809bc441dd2bac?narHash=sha256-7pEJ5a%2BhbpeCmKqRt%2BN5ddhsBD8IwDRenMN8WPnB8MQ%3D' (2024-06-25)
• Added input 'bellroy-nix-foss/flake-compat':
    'github:edolstra/flake-compat/0f9255e01c2351cc7d116c072cb317785dd33b33?narHash=sha256-kvjfFW7WAETZlt09AgDn1MrtKzP7t90Vf7vypd3OL1U%3D' (2023-10-04)
• Added input 'bellroy-nix-foss/flake-utils':
    'github:numtide/flake-utils/b1d9ab70662946ef0850d488da1c9019f3a9752a?narHash=sha256-SZ5L6eA7HJ/nmkzGG7/ISclqe6oZdOZTNoesiInkXPQ%3D' (2024-03-11)
• Added input 'bellroy-nix-foss/flake-utils/systems':
    'github:nix-systems/default/da67096a3b9bf56a91d16901293e51ba5b49a27e?narHash=sha256-Vy1rq5AaRuLzOxct8nz4T6wlgyUR7zLU309k9mBC768%3D' (2023-04-09)
• Added input 'bellroy-nix-foss/nixpkgs':
    'github:NixOS/nixpkgs/9693852a2070b398ee123a329e68f0dab5526681?narHash=sha256-jHJSUH619zBQ6WdC21fFAlDxHErKVDJ5fpN0Hgx4sjs%3D' (2024-06-22)
• Removed input 'flake-utils'
• Removed input 'flake-utils/systems'
• Removed input 'nixpkgs'