flake.lock: Update (#813)

Flake lock file updates:

• Updated input 'nixos-infra':
    'github:NixOS/infra/9532a8bb92ae9319de11b6c2052b0d68ff3b4dae?narHash=sha256-Zxl2EltZSCk9K4lGwo0vc3FrH/YmC/Lj6u8xLr/s154%3D' (2024-07-01)
  → 'github:NixOS/infra/0e4ddbf7943699b9d61bc6eaae9b2ef536ffeb5a?narHash=sha256-Cj5h2zSCGTuIlbEWasB4aIBl8IEhdxq/JZX%2BvQmyffk%3D' (2024-07-13)
• Updated input 'nixpkgs':
    'github:NixOS/nixpkgs/9f4128e00b0ae8ec65918efeba59db998750ead6?narHash=sha256-rwz8NJZV%2B387rnWpTYcXaRNvzUSnnF9aHONoJIYmiUQ%3D' (2024-07-03)
  → 'github:NixOS/nixpkgs/7e7c39ea35c5cdd002cd4588b03a3fb9ece6fad9?narHash=sha256-EYekUHJE2gxeo2pM/zM9Wlqw1Uw2XTJXOSAO79ksc4Y%3D' (2024-07-12)

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