chore(deps): update canonical/charming-actions action to v2.6.3 #344

Job	Run time
Publish Charm / Generate the Charm Matrix	4s
Run Tests / Unit Test (tensorboard-controller)	19s
Run Tests / Unit Test (tensorboards-web-app)	21s
Run Tests / Integration Test	13m 46s
Run Tests / Charm-specific Integration tests (microk8s) (tensorboard-controller)	15m 35s
Run Tests / Lint Check (tensorboard-controller)	15s
Run Tests / Charm-specific Integration tests (microk8s) (tensorboards-web-app)	15m 28s
Run Tests / Lint Check (tensorboards-web-app)	19s
Run Tests / Check libraries (tensorboard-controller) / Check libraries	24s
Run Tests / Check libraries (tensorboard-controller) / Lint	8s
Run Tests / Check libraries (tensorboards-web-app) / Check libraries	23s
Run Tests / Check libraries (tensorboards-web-app) / Lint	10s
Run Tests / Terraform (tensorboard-controller) / Apply	0s
Run Tests / Terraform (tensorboard-controller) / Lint Terraform	7s
Run Tests / Terraform (tensorboards-web-app) / Apply	0s
Run Tests / Terraform (tensorboards-web-app) / Lint Terraform	7s
Run Tests / Terraform (tensorboard-controller) / Check / Check Terraform	10s
Run Tests / Terraform (tensorboards-web-app) / Check / Check Terraform	11s
Publish Charm / Publish Charm (./charms/tensorboards-web-app)	7m 1s
Publish Charm / Publish Charm (./charms/tensorboard-controller)	6m 52s
	1h 1m 40s

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