chore(deps): update terraform juju to ~> 0.15.0 #753

Job	Run time
Publish Charm / Generate the Charm Matrix	4s
Run Tests / Integration tests (microk8s) (katib-controller)	22m 48s
Run Tests / Integration tests (microk8s) (katib-db-manager)	22m 39s
Run Tests / Lint	12s
Run Tests / Test the bundle	1h 2m 37s
Run Tests / Unit tests (katib-controller)	21s
Run Tests / Unit tests (katib-db-manager)	14s
Run Tests / Check libraries (katib-controller) / Check libraries	35s
Run Tests / Check libraries (katib-controller) / Lint	9s
Run Tests / Check libraries (katib-db-manager) / Check libraries	22s
Run Tests / Check libraries (katib-db-manager) / Lint	10s
Run Tests / Check libraries (katib-ui) / Lint	10s
Run Tests / Check libraries (katib-ui) / Check libraries	28s
Run Tests / Terraform (katib-controller) / Apply / Apply Terraform	15m 26s
Run Tests / Terraform (katib-controller) / Check / Check Terraform	6s
Run Tests / Terraform (katib-db-manager) / Apply / Apply Terraform	5m 47s
Run Tests / Terraform (katib-controller) / Lint / Lint Terraform	7s
Run Tests / Terraform (katib-db-manager) / Check / Check Terraform	6s
Run Tests / Terraform (katib-ui) / Apply / Apply Terraform	5m 3s
Run Tests / Terraform (katib-db-manager) / Lint / Lint Terraform	8s
Run Tests / Terraform (katib-ui) / Check / Check Terraform	10s
Run Tests / Terraform (katib-ui) / Lint / Lint Terraform	6s
Publish Charm / Publish Charm (./charms/katib-ui)	21m 29s
Publish Charm / Publish Charm (./charms/katib-controller)	13m 45s
Publish Charm / Publish Charm (./charms/katib-db-manager)	14m 5s
	3h 7m 7s

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