Update gitlab kubernetes cluster to 1.22

subtask dedicated to the gitlab cluster upgrade to kubernetes 1.22

---

Migrated from T4360 (view on Phabricator)

marked this issue as related to #4358 (closed)

added System administration priority:Normal labels

After the operator was updated to 0.12.2, it was possible to upgrade kubernetes to 1.22. It was done by changing the version in the azure portal:

❯ kubectl get nodes
NAME                              STATUS   ROLES   AGE     VERSION
aks-default-31796401-vmss000016   Ready    agent   7h46m   v1.22.15
aks-default-31796401-vmss000027   Ready    agent   7h42m   v1.22.15
aks-default-31796401-vmss000028   Ready    agent   7h37m   v1.22.15

closed