* Update multus to v4.1.0 and clarify cilium compatibility
* Fix: bug introduced by #10934 where the template would break if multus was defined
* Set priorityClassName to system-node-critical for multus pods
* Remove deprecated provider and fix flatcar configs
* Refactor for DRYness
* Add missing line endings
* Enable tests for hetzner terraform in CI
* Add missing inventory for CI tests