chore(deps): update dependency ubuntu to v22 #692

Job	Run time
Run Tests / Unit Test (controller)	58s
Run Tests / Unit Test (ui)	43s
Publish Charm / Generate the Charm Matrix	3s
Run Tests / Bundle Integration	5m 58s
Run Tests / Individual charm's integration tests (controller)	6m 17s
Run Tests / Individual charm's integration tests (ui)	6m 12s
Run Tests / Lint Code (controller)	28s
Run Tests / Lint Code (ui)	17s
Run Tests / Check libraries (jupyter-controller) / Check libraries	28s
Run Tests / Check libraries (jupyter-controller) / Lint	16s
Run Tests / Check libraries (jupyter-ui) / Check libraries	27s
Run Tests / Check libraries (jupyter-ui) / Lint	24s
Publish Charm / Publish Charm (./charms/jupyter-ui)	31s
Publish Charm / Publish Charm (./charms/jupyter-controller)	28s
	23m 30s

Provide feedback