bump nixpkgs version

cpupower: 6.6.37 → 6.6.39
ena: 2.12.0-6.6.37 → 2.12.0-6.6.39
initrd-linux: 6.6.37 → 6.6.39, +111.3 KiB
linux: 6.6.37, 6.6.37-modules → 6.6.39, 6.6.39-modules, +103.5 KiB
linux-firmware: 20240610 → 20240709, +3751.1 KiB
nixos-system-monitoring: 24.05.2580.194846768975 → 24.05.2780.53e81e790209
nixos-system-payments: 24.05.2580.194846768975 → 24.05.2780.53e81e790209
nixos-system-storage001: 24.05.2580.194846768975 → 24.05.2780.53e81e790209
nixos-system-storage002: 24.05.2580.194846768975 → 24.05.2780.53e81e790209
nixos-system-storage003: 24.05.2580.194846768975 → 24.05.2780.53e81e790209
nixos-system-storage004: 24.05.2580.194846768975 → 24.05.2780.53e81e790209
nixos-system-storage005: 24.05.2580.194846768975 → 24.05.2780.53e81e790209
nixos-system-storage1: 24.05.2580.194846768975 → 24.05.2780.53e81e790209
nixos-system-storage2: 24.05.2580.194846768975 → 24.05.2780.53e81e790209
prometheus: 2.52.0 → 2.53.1, -484.8 KiB
stage: -20.4 KiB
zfs-kernel: 2.2.4-6.6.37 → 2.2.4-6.6.39