- [k8s] fix `cmd` generator for collators (needs to use exposed ports).

Add: 
  - async drop impl in k8s namespace / `noop` in native.
  - Modify example test.

- Add clean disk space action.

Add: Manual variant to `RegistrationStrategy`, allow to deploy the
collators _but_ not register the para.
Fix: `created_paths` in native provider
Fix: Use `rpc` port for ws connections (orchestrator)

This is a very simple gitlab CI manifest to just check the tag on this
pipeline schedule it on Zombienet k8s runner and is the SA inject to the
runners in privileged enough to run command within the cluster or not

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Co-authored-by: Javier Viola <javier@parity.io>