flake.lock: Update (#811)

Flake lock file updates:

• Updated input 'nixos-infra':
    'github:NixOS/infra/dd2613701333234c5d1b84c7bc9cab907b712e77?narHash=sha256-W9SPjBPAOGGzCU7SxhQ4VaQvm30GjEJfx%2BaugFPwlEA%3D' (2024-06-30)
  → 'github:NixOS/infra/9532a8bb92ae9319de11b6c2052b0d68ff3b4dae?narHash=sha256-Zxl2EltZSCk9K4lGwo0vc3FrH/YmC/Lj6u8xLr/s154%3D' (2024-07-01)
• Updated input 'nixpkgs':
    'github:NixOS/nixpkgs/b2852eb9365c6de48ffb0dc2c9562591f652242a?narHash=sha256-C8e9S7RzshSdHB7L%2Bv9I51af1gDM5unhJ2xO1ywxNH8%3D' (2024-06-27)
  → 'github:NixOS/nixpkgs/9f4128e00b0ae8ec65918efeba59db998750ead6?narHash=sha256-rwz8NJZV%2B387rnWpTYcXaRNvzUSnnF9aHONoJIYmiUQ%3D' (2024-07-03)

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