flake.lock: Update

Flake lock file updates:

• Updated input 'neorocks':
    'github:nvim-neorocks/neorocks/f72e57d2ebc0cd21d208ecc245a2c6dcd4c8c2b3' (2024-04-20)
  → 'github:nvim-neorocks/neorocks/a070bd5127aecf8e962b9c732e6fca84ed9798d4' (2024-04-24)
• Updated input 'neorocks/neovim-nightly':
    'github:neovim/neovim/4d52b0cf670502caf81b70f2f1e6f8c548b78f58?dir=contrib' (2024-04-20)
  → 'github:neovim/neovim/c81b7849a0f677164c01cf84ecfb25c1f47acf21?dir=contrib' (2024-04-23)
• Updated input 'neorocks/nixpkgs':
    'github:nixos/nixpkgs/d764f230634fa4f86dc8d01c6af9619c7cc5d225' (2024-04-18)
  → 'github:nixos/nixpkgs/1e1dc66fe68972a76679644a5577828b6a7e8be4' (2024-04-22)
• Updated input 'neorocks/pre-commit-hooks':
    'github:cachix/pre-commit-hooks.nix/40e6053ecb65fcbf12863338a6dcefb3f55f1bf8' (2024-04-12)
  → 'github:cachix/pre-commit-hooks.nix/2ac4dcbf55ed43f3be0bae15e181f08a57af24a4' (2024-04-22)
• Updated input 'nixpkgs':
    'github:nixos/nixpkgs/fd16bb6d3bcca96039b11aa52038fafeb6e4f4be' (2024-04-20)
  → 'github:nixos/nixpkgs/d6f6eb2a984f2ba9a366c31e4d36d65465683450' (2024-04-27)
• Updated input 'pre-commit-hooks':
    'github:cachix/pre-commit-hooks.nix/40e6053ecb65fcbf12863338a6dcefb3f55f1bf8' (2024-04-12)
  → 'github:cachix/pre-commit-hooks.nix/6fb82e44254d6a0ece014ec423cb62d92435336f' (2024-04-24)