tests: pin deployed charms to a latest and stable compatible version #180

Job	Run time
Publish Charm / Generate the Charm Matrix	2s
Publish Charm / Generate the Charm Matrix	2s
Run Tests / Integration Tests	14m 25s
Run Tests / Integration Tests	14m 2s
Run Tests / Lint Check	15s
Run Tests / Lint Check	15s
Run Tests / Unit Test	56s
Run Tests / Unit Test	56s
Run Tests / Check libraries / Check libraries	28s
Run Tests / Check libraries / Check libraries	28s
Run Tests / Check libraries / Lint	9s
Run Tests / Check libraries / Lint	9s
Publish Charm / Publish Charm (./)	4m 22s
Publish Charm / Publish Charm (./)	4m 22s
	40m 51s

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