chore(deps): update canonical/charming-actions action to v2.6.2 #250

Job	Run time
Run Tests / Integration Test (argo-controller)	21m 47s
Publish Charm / Generate the Charm Matrix	6s
Run Tests / Lint Code (argo-controller)	29s
Run Tests / Lint Code (argo-server)	29s
Run Tests / Unit Tests (argo-controller)	39s
Run Tests / Unit Tests (argo-server)	29s
Run Tests / Check libraries (argo-controller) / Check libraries	31s
Run Tests / Check libraries (argo-server) / Check libraries	7s
Run Tests / Check libraries (argo-controller) / Lint	14s
Run Tests / Check libraries (argo-server) / Lint	15s
Publish Charm / Publish Charm (./charms/argo-controller)	5m 51s
Publish Charm / Publish Charm (./charms/argo-server)	3m 1s
	33m 58s

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