build: bump ops to latest possible version #890

Job	Run time
Publish Charm / Generate the Charm Matrix	2s
Run Tests / Individual charm's integration tests (controller)	12m 38s
Run Tests / Bundle Integration	15m 41s
Run Tests / Individual charm's integration tests (ui)	13m 12s
Run Tests / Lint Code (controller)	21s
Run Tests / Unit Test (controller)	26s
Run Tests / Lint Code (ui)	18s
Run Tests / Unit Test (ui)	27s
Run Tests / Check libraries (jupyter-controller) / Check libraries	23s
Run Tests / Check libraries (jupyter-controller) / Lint	10s
Run Tests / Check libraries (jupyter-ui) / Check libraries	34s
Run Tests / Check libraries (jupyter-ui) / Lint	12s
Publish Charm / Publish Charm (./charms/jupyter-ui)	4m 21s
Publish Charm / Publish Charm (./charms/jupyter-controller)	3m 31s
	52m 16s

Provide feedback