flake.lock: Update

Flake lock file updates:

• Updated input 'disko':
    'github:nix-community/disko/5f6dbcce99d60dd77f96dfc66d06bbea149a40e1' (2024-05-16)
  → 'github:nix-community/disko/6f01b9710bc4d3bf006eb8df928b4b15e0430901' (2024-05-20)
• Updated input 'hardware':
    'github:NixOS/nixos-hardware/b55712de78725c8fcde422ee0a0fe682046e73c3' (2024-05-18)
  → 'github:NixOS/nixos-hardware/d9e0b26202fd500cf3e79f73653cce7f7d541191' (2024-05-20)
• Updated input 'nix-gaming':
    'github:fufexan/nix-gaming/bf9a8a83f9c9fc75b01c8467b4d1432e79dcc6ca' (2024-05-19)
  → 'github:fufexan/nix-gaming/ddf67a243c20d781563d6a4066be164720b32afa' (2024-05-20)
• Updated input 'nixpkgs':
    'github:NixOS/nixpkgs/4a6b83b05df1a8bd7d99095ec4b4d271f2956b64' (2024-05-17)
  → 'github:NixOS/nixpkgs/6c0b7a92c30122196a761b440ac0d46d3d9954f1' (2024-05-19)
• Updated input 'zsh-completions':
    'github:zsh-users/zsh-completions/b1cf65187047a83e27a0847bd565dcf28b5be465' (2024-04-25)
  → 'github:zsh-users/zsh-completions/978e79e12c44b5b1d3e1e2920c537002087b82c2' (2024-05-21)