Add-Ons without cluster create not working

[sluetze]

Hi,

hetzner-ocp4/docs/add-ons.md

Line 132 in ff2f1f9

Run `./ansible/02-create-cluster.yml --tags post-install-add-ons`

states that to run post-install-add-ons i should run the shown command - which does not work.

PLAY [host] ********************************************************************

TASK [Gathering Facts] *********************************************************
ok: [host]

TASK [openshift-4-cluster : Check add-ons.yml] *********************************
ok: [host]

TASK [openshift-4-cluster : Enable add-ons] ************************************
ok: [host]

TASK [openshift-4-cluster : Build IPv6 subnet] *********************************
skipping: [host]

TASK [openshift-4-cluster : Build IPv4 subnet] *********************************
ok: [host]

PLAY RECAP *********************************************************************
host                       : ok=4    changed=0    unreachable=0    failed=0    skipped=1    rescued=0    ignored=0   

The root cause of this is the missing tag post-install-add-ons in some places.