Update cos_agent lib with generic HostHealth rules #416

Job	Run time
PR / Check against ignorelist	3s
PR / Check against ignorelist	3s
PR / Quality Checks / Check the CHARMHUB_TOKEN secret	1s
PR / Quality Checks / Check the CHARMHUB_TOKEN secret	1s
PR / Quality Checks / Static Analysis / Static analysis (lib and charm)	35s
PR / Quality Checks / Static Analysis / Static analysis (lib and charm)	35s
PR / Quality Checks / Linting / Lint tests	37s
PR / Quality Checks / Linting / Lint tests	37s
PR / Quality Checks / Scenario Tests / Scenario tests	39s
PR / Quality Checks / Scenario Tests / Scenario tests	39s
PR / Quality Checks / Inclusive naming / check	5s
PR / Quality Checks / Inclusive naming / check	5s
PR / Quality Checks / Unit Tests / Unit tests	43s
PR / Quality Checks / Unit Tests / Unit tests	43s
PR / Quality Checks / Check libraries	44s
PR / Quality Checks / Check libraries	44s
PR / Quality Checks / CodeQL analysis / Analyze (python)	1m 14s
PR / Quality Checks / CodeQL analysis / Analyze (python)	1m 14s
PR / Quality Checks / Integration Tests / Integration Tests	6m 0s
PR / Quality Checks / Integration Tests / Integration Tests	27m 23s
	42m 45s

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