Support the external-cloud-provider on bootstrap of k8s (#68) #11

Job	Run time
configure-channel	1s
publish-to-edge (./charms/worker/, k8s-worker) / Get images	3s
publish-to-edge (./charms/worker/k8s/, k8s) / branch-up-to-date-check-enabled	5m 4s
publish-to-edge (./charms/worker/, k8s-worker) / branch-up-to-date-check-enabled	2s
publish-to-edge (./charms/worker/k8s/, k8s) / Get images	5s
publish-to-edge (./charms/worker/k8s/, k8s) / Get runner image / Get runner image	2s
publish-to-edge (./charms/worker/, k8s-worker) / Get runner image / Get runner image	4s
publish-to-edge (./charms/worker/, k8s-worker) / Release charm libs	4s
publish-to-edge (./charms/worker/, k8s-worker) / Get workflow run id	4s
publish-to-edge (./charms/worker/, k8s-worker) / Draft publish docs	20s
publish-to-edge (./charms/worker/, k8s-worker) / Publish images to charmhub	0s
publish-to-edge (./charms/worker/, k8s-worker) / Publish charm to latest/edge	1m 33s
publish-to-edge (./charms/worker/k8s/, k8s) / Draft publish docs	19s
publish-to-edge (./charms/worker/k8s/, k8s) / Release charm libs	35s
publish-to-edge (./charms/worker/k8s/, k8s) / Get workflow run id	6s
publish-to-edge (./charms/worker/k8s/, k8s) / Publish images to charmhub	0s
publish-to-edge (./charms/worker/k8s/, k8s) / Publish charm to latest/edge	1m 24s
	9m 46s

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