chore(deps): update canonical/charming-actions action to v2.6.2 #307

Job	Run time
Publish Charm / Generate the Charm Matrix	3s
Run Tests / Unit Tests (argo-controller)	38s
Run Tests / Lint Code (argo-controller)	38s
Run Tests / Unit Tests (argo-server)	27s
Run Tests / Lint Code (argo-server)	36s
Run Tests / Integration Test (argo-controller)	16m 24s
Run Tests / Check libraries (argo-controller) / Check libraries	32s
Run Tests / Check libraries (argo-server) / Lint	13s
Run Tests / Check libraries (argo-server) / Check libraries	8s
Run Tests / Check libraries (argo-controller) / Lint	15s
Publish Charm / Publish Charm (./charms/argo-controller)	4m 10s
Publish Charm / Publish Charm (./charms/argo-server)	2m 53s
	26m 57s

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