flake.lock: Update

Flake lock file updates:

• Updated input 'neovim-nightly':
    'github:nix-community/neovim-nightly-overlay/9b76a3d348f8687f1d863fe7db722fbdff618df0?narHash=sha256-zWVO1JQKqaH6i2zj9BiZzwuixb6GM0k%2BUvzHNQtFfcg%3D' (2024-12-22)
  → 'github:nix-community/neovim-nightly-overlay/0d0beafd94c34915fb951b31e165be5cf1cf3a7c?narHash=sha256-CJ3dXoCQzbSR/b8kbswlf/JIGKIN/6c9ywRw2rQAIYY%3D' (2024-12-24)
• Updated input 'neovim-nightly/neovim-src':
    'github:neovim/neovim/fd05c7f19d942edce39a2c99b5c064b71e66bc31?narHash=sha256-33cvzFskIECPyDBmwwegyuQE%2Bifc7sTCqmlS6hOnun8%3D' (2024-12-21)
  → 'github:neovim/neovim/c51bf5a6b24928ac04d0bb129b1b424d4c78f28d?narHash=sha256-DVlI7ua%2BVOkqC70WpSbJO%2BFjQyBEarGZnKoql7I7Unk%3D' (2024-12-23)
• Updated input 'neovim-nightly/nixpkgs':
    'github:NixOS/nixpkgs/4989a246d7a390a859852baddb1013f825435cee?narHash=sha256-kMBQ5PRiFLagltK0sH%2B08aiNt3zGERC2297iB6vrvlU%3D' (2024-12-17)
  → 'github:NixOS/nixpkgs/93ff48c9be84a76319dac293733df09bbbe3f25c?narHash=sha256-Q%2BCB1ajsJg4Z9HGHTBAGY1q18KpnnkmF/eCTLUY6FQ0%3D' (2024-12-22)
• Updated input 'neovim-nightly/treefmt-nix':
    'github:numtide/treefmt-nix/65712f5af67234dad91a5a4baee986a8b62dbf8f?narHash=sha256-MMi74%2BWckoyEWBRcg/oaGRvXC9BVVxDZNRMpL%2B72wBI%3D' (2024-12-20)
  → 'github:numtide/treefmt-nix/e41e948cf097cbf96ba4dff47a30ea6891af9f33?narHash=sha256-N7M37KP7cHWoXicuE536GrVvU8nMDT/gpI1kja2hkdg%3D' (2024-12-23)
• Updated input 'nixpkgs':
    'github:nixos/nixpkgs/4989a246d7a390a859852baddb1013f825435cee?narHash=sha256-kMBQ5PRiFLagltK0sH%2B08aiNt3zGERC2297iB6vrvlU%3D' (2024-12-17)
  → 'github:nixos/nixpkgs/93ff48c9be84a76319dac293733df09bbbe3f25c?narHash=sha256-Q%2BCB1ajsJg4Z9HGHTBAGY1q18KpnnkmF/eCTLUY6FQ0%3D' (2024-12-22)