Update nixpkgs.

Weekly nixpkgs update.

Looks like the usual Kernel version bump. Also includes a minor grafana bump, though.

nix store diff-closures

VirtualBox-GuestAdditions: 6.1.30-5.10.96 → 6.1.30-5.10.98
amazon-ec2-utils: ∅ → 2.0, +21.9 KiB
cpupower: 5.10.96 → 5.10.98
ec2: ε → ∅, -24.1 KiB
ena: 2.5.0-5.10.96 → 2.5.0-5.10.98
extra: +23853.4 KiB
grafana: 8.3.4 → 8.3.5
initrd-kmod-blacklist: ε → ∅
initrd-linux: 5.10.96 → 5.10.98, +96.6 KiB
linux: 5.10.96, 5.10.96-modules → 5.10.98, 5.10.98-modules
mdadm.conf: ε → ∅
nixos-system-monitoring: 21.11.335820.521e4d7d13b → 21.11.335883.7adc9c14ec7
nixos-system-payments: 21.11.335820.521e4d7d13b → 21.11.335883.7adc9c14ec7
nixos-system-storage001: 21.11.335820.521e4d7d13b → 21.11.335883.7adc9c14ec7
nixos-system-storage002: 21.11.335820.521e4d7d13b → 21.11.335883.7adc9c14ec7
nixos-system-storage003: 21.11.335820.521e4d7d13b → 21.11.335883.7adc9c14ec7
nixos-system-storage004: 21.11.335820.521e4d7d13b → 21.11.335883.7adc9c14ec7
nixos-system-storage005: 21.11.335820.521e4d7d13b → 21.11.335883.7adc9c14ec7
nixos-system-storage1: 21.11.335820.521e4d7d13b → 21.11.335883.7adc9c14ec7
nixos-system-storage2: 21.11.335820.521e4d7d13b → 21.11.335883.7adc9c14ec7
python: 2.7.18 → ∅, -45813.8 KiB
stage: 1-init.sh → ∅, -38.7 KiB
udev: +37.9 KiB
udhcp: ∅ → ε
zfs-kernel: 2.1.2-5.10.96 → 2.1.2-5.10.98

To make this MR I ran:

nix-build -A morph -o result-before
update-nixpkgs
nix-build -A morph -o result-after
nix-shell -p nixUnstable
nix --extra-experimental-features nix-command store diff-closures ./result-before/ ./result-after/