flake.lock: Update

Flake lock file updates:

• Updated input 'master':
    'github:NixOS/nixpkgs/e6c09b2d57259503b883a99d91984101be524366?narHash=sha256-Ygi1EiLGgmRElXUzY/%2BquTqqPyTh5NlEZ83tFFLhzW0%3D' (2024-08-31)
  → 'github:NixOS/nixpkgs/7b3fc641708616ca86e6c8262d16df0b0ea5bec1?narHash=sha256-BkoG8HsdQrj8K9ZXpbkC7GVxPnpcuKQhXRBb9avUB8k%3D' (2024-09-01)
• Updated input 'nix-index-database':
    'github:nix-community/nix-index-database/e333d62b70b179da1dd78d94315e8a390f2d12e5?narHash=sha256-uM7n5nNL6fmA0bwMJBNll11f4cMWOFa2Ni6F5KeIldM%3D' (2024-08-25)
  → 'github:nix-community/nix-index-database/32058e9138248874773630c846563b1a78ee7a5b?narHash=sha256-WfAHq3Ag3vLNFfWxKHjFBFdPI6JIideWFJod9mx1eoo%3D' (2024-09-01)
• Updated input 'spicetify-nix':
    'github:Gerg-L/spicetify-nix/305b6034ad329268eb33c079e2d33740ccf329ea?narHash=sha256-4SwFxe789QXOtGNFbwldpqFzkKxIFuyDysFttFWB5eM%3D' (2024-08-31)
  → 'github:Gerg-L/spicetify-nix/be4c6a86cd30f29c847412cf4d3463c3113e3c30?narHash=sha256-fkPtxxfjwoNiV3nZRG0xmQ5Jk7cT0z7dGn2fuV2i6Qo%3D' (2024-09-01)
• Updated input 'stable':
    'github:NixOS/nixpkgs/ae2fc9e0e42caaf3f068c1bfdc11c71734125e06?narHash=sha256-WXHSyOF4nBX0cvHN3DfmEMcLOVdKH6tnMk9FQ8wTNRc%3D' (2024-08-28)
  → 'github:NixOS/nixpkgs/6e99f2a27d600612004fbd2c3282d614bfee6421?narHash=sha256-eV%2B63gK0Mp7ygCR0Oy4yIYSNcum2VQwnZamHxYTNi%2BM%3D' (2024-08-30)