flake.lock: Update (#168)

Flake lock file updates:

• Updated input 'master':
    'github:NixOS/nixpkgs/584463c7449a116f095eb456116f728c2b31497b' (2023-12-10)
  → 'github:NixOS/nixpkgs/eec92ca9df6ac423377275170caf58878076f798' (2023-12-11)
• Updated input 'nixfmt':
    'github:piegamesde/nixfmt/21ef16e7fe9011ecd77ba05fa5873287e4c0d2a4' (2023-12-01)
  → 'github:piegamesde/nixfmt/9424bd08ea945a9f79fe90f5a858409e212cceea' (2023-12-10)
• Updated input 'nvim-flake':
    'github:Gerg-L/nvim-flake/2f4e2bfb1caf90bb18fa1bc0d5ab5c3aebf3ae41' (2023-12-10)
  → 'github:Gerg-L/nvim-flake/d658f3870075336448c196934379d7b57db6374f' (2023-12-11)
• Updated input 'nvim-flake/neovim-src':
    'github:neovim/neovim/096211a87b1649e9a7408ce159072a6236195eea' (2023-12-09)
  → 'github:neovim/neovim/529498685bbcd4783bc0e816d6247118c9ffb9a7' (2023-12-10)
• Updated input 'nvim-flake/nixfmt':
    'github:piegamesde/nixfmt/21ef16e7fe9011ecd77ba05fa5873287e4c0d2a4' (2023-12-01)
  → 'github:piegamesde/nixfmt/9424bd08ea945a9f79fe90f5a858409e212cceea' (2023-12-10)
• Updated input 'spicetify-nix':
    'github:Gerg-L/spicetify-nix/52fa6b8355e8fd1dc3cf1371017d0e84de84fb81' (2023-12-10)
  → 'github:Gerg-L/spicetify-nix/41edd8892f14a1ea12d125e64160e32f94d05bc7' (2023-12-11)
• Updated input 'unstable':
    'github:NixOS/nixpkgs/2c7f3c0fb7c08a0814627611d9d7d45ab6d75335' (2023-12-04)
  → 'github:NixOS/nixpkgs/666fc80e7b2afb570462423cb0e1cf1a3a34fedd' (2023-12-09)

Co-authored-by: github-actions[bot] <github-actions[bot]@users.noreply.github.com>