[release-1.4] Access to Openstack metadata from nodes is sometimes failing

Summary

As described in 11543468109 VMs which are created by CAPO sometimes can not access to their metadata due to network failure.

This is solved by accessing these metadata through a disk. The related parameter is configDrive being set to true by default, see sylva-projects/sylva-elements/helm-charts/sylva-capi-cluster!662 (merged).

In release-1.4, the parameter, by default, is still false: https://gitlab.com/search?search=configdrive%20&nav_source=navbar&project_id=46103673&group_id=63529637&search_code=true&repository_ref=0.9.21

However, it is possible to set CI values to true

The present issue is about setting configDrive to true in the release-1.4 CI values