flake.lock: Update

Flake lock file updates:

• Updated input 'nixpkgs-master':
    'github:NixOS/nixpkgs/7f29cc7704414b2766f698abaa573735d86ae587?narHash=sha256-nUoho/%2Bz3K7tptCUAVjx4SLN/VWfKeea3LzUa2JzwcI%3D' (2024-07-04)
  → 'github:NixOS/nixpkgs/3a6785efdb7b7412208e356b4064278aff90c6e2?narHash=sha256-bZYIRki8ElGw3hbc6t7VG3GiCpVYYNUVBDiW1fPjbck%3D' (2024-07-22)
• Updated input 'nixpkgs-nixos-unstable':
    'github:NixOS/nixpkgs/00d80d13810dbfea8ab4ed1009b09100cca86ba8?narHash=sha256-H3%2BEC5cYuq%2BgQW8y0lSrrDZfH71LB4DAf%2BTDFyvwCNA%3D' (2024-07-01)
  → 'github:NixOS/nixpkgs/1d9c2c9b3e71b9ee663d11c5d298727dace8d374?narHash=sha256-8MUgifkJ7lkZs3u99UDZMB4kbOxvMEXQZ31FO3SopZ0%3D' (2024-07-19)
• Updated input 'nixpkgs-nixpkgs-unstable':
    'github:NixOS/nixpkgs/6842b061970bf96965d66fcc86a28e1f719aae95?narHash=sha256-gM2RCi5XkxmcsZ44pUkKIYBiBMfZ6u7MdcZcykmccrs%3D' (2024-07-04)
  → 'github:NixOS/nixpkgs/c19d62ad2265b16e2199c5feb4650fe459ca1c46?narHash=sha256-cFgdjyK/VBM3hB1RfFHXcI/VOCBVAv813s1upHKX7bI%3D' (2024-07-21)
• Updated input 'nixpkgs-release':
    'github:NixOS/nixpkgs/706eef542dec88cc0ed25b9075d3037564b2d164?narHash=sha256-nNJHJ9kfPdzYsCOlHOnbiiyKjZUW5sWbwx3cakg3/C4%3D' (2024-07-02)
  → 'github:NixOS/nixpkgs/63d37ccd2d178d54e7fb691d7ec76000740ea24a?narHash=sha256-7cCC8%2BTdq1%2B3OPyc3%2BgVo9dzUNkNIQfwSDJ2HSi2u3o%3D' (2024-07-21)
• Updated input 'nixpkgs-release-staging':
    'github:NixOS/nixpkgs/3613a1b661b197dc1d17c43c04c9b49a75152d88?narHash=sha256-EkDEAx8MxlJCoTEQzWses5LUso1D0t/xi2cMPYqg3fo%3D' (2024-07-04)
  → 'github:NixOS/nixpkgs/edaf1cbcc2bba4ef8bf175d7eb7cb7d7b782689f?narHash=sha256-TXsNZHdQLuC8qis/loTumDeyhWXaJaThNj4SZFipLWU%3D' (2024-07-22)