Filesystem is not resized by cloud-init

The following does not work: https://wiki.archlinux.org/title/Arch_Linux_on_a_VPS#Hetzner_Cloud

My cloud-init config:

#cloud-config
locale: ka_GE
timezone: Asia/Tbilisi

ssh_keys:
  ed25519_private: |
    x
  ed25519_public: x

disable_root: false
users:
  - name: root
    ssh_authorized_keys:
      - x

package_update: true
package_upgrade: true
packages:
  - rsync