flake.lock: Update

Flake lock file updates:

• Updated input 'nixpkgs':
    'github:NixOS/nixpkgs/9ddcaffecdf098822d944d4147dd8da30b4e6843' (2024-05-14)
  → 'github:NixOS/nixpkgs/9d29cd266cebf80234c98dd0b87256b6be0af44e' (2024-05-25)
• Updated input 'zig-overlay':
    'github:mitchellh/zig-overlay/03303bf01701b04ec87c55ce5d8d6f5ecf86d0a7' (2024-05-15)
  → 'github:mitchellh/zig-overlay/75299222cdd0680737fe8e556a259833386c42b9' (2024-05-30)
• Updated input 'zig-overlay/flake-compat':
    'github:edolstra/flake-compat/35bb57c0c8d8b62bbfd284272c928ceb64ddbde9' (2023-01-17)
  → 'github:edolstra/flake-compat/0f9255e01c2351cc7d116c072cb317785dd33b33' (2023-10-04)
• Updated input 'zig-overlay/flake-utils':
    'github:numtide/flake-utils/c0e246b9b83f637f4681389ecabcb2681b4f3af0' (2022-08-07)
  → 'github:numtide/flake-utils/1ef2e671c3b0c19053962c07dbda38332dcebf26' (2024-01-15)
• Added input 'zig-overlay/flake-utils/systems':
    'github:nix-systems/default/da67096a3b9bf56a91d16901293e51ba5b49a27e' (2023-04-09)