ci(upload-charm): use charmcraft from latest/candidate in track/1.8 #957

Job	Run time
Run Tests / Individual charm's integration tests (controller)	26m 4s
Run Tests / Individual charm's integration tests (controller)	26m 40s
Publish Charm / Generate the Charm Matrix	3s
Publish Charm / Generate the Charm Matrix	3s
Run Tests / Individual charm's integration tests (ui)	25m 7s
Run Tests / Individual charm's integration tests (ui)	25m 7s
Run Tests / Bundle Integration	42m 4s
Run Tests / Bundle Integration	42m 4s
Run Tests / Lint Code (controller)	23s
Run Tests / Lint Code (controller)	23s
Run Tests / Unit Test (controller)	26s
Run Tests / Unit Test (controller)	26s
Run Tests / Lint Code (ui)	34s
Run Tests / Lint Code (ui)	34s
Run Tests / Unit Test (ui)	28s
Run Tests / Unit Test (ui)	28s
Run Tests / Check libraries (jupyter-controller) / Check libraries	34s
Run Tests / Check libraries (jupyter-controller) / Check libraries	34s
Run Tests / Check libraries (jupyter-controller) / Lint	13s
Run Tests / Check libraries (jupyter-controller) / Lint	13s
Run Tests / Check libraries (jupyter-ui) / Check libraries	37s
Run Tests / Check libraries (jupyter-ui) / Check libraries	37s
Run Tests / Check libraries (jupyter-ui) / Lint	11s
Run Tests / Check libraries (jupyter-ui) / Lint	11s
Publish Charm / Publish Charm (./charms/jupyter-ui)	14m 57s
Publish Charm / Publish Charm (./charms/jupyter-ui)	14m 57s
Publish Charm / Publish Charm (./charms/jupyter-controller)	14m 6s
Publish Charm / Publish Charm (./charms/jupyter-controller)	14m 6s
	4h 12m 10s

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