Update cert_handler lib #1139

Job	Run time
Publish Charm / Generate the Charm Matrix	4s
Run Tests / Observability Integration Test (1.25-strict/stable)	1h 5m 27s
Run Tests / Integration Test (1.27-strict/stable, integration)	1h 9m 38s
Run Tests / Observability Integration Test (1.26-strict/stable)	1h 2m 42s
Run Tests / Integration Test (1.27-strict/stable, integration-tls-provider)	1h 6m 35s
Run Tests / Integration Test (1.27-strict/stable, integration-tls-secret)	1h 6m 32s
Run Tests / Lint Code (pilot)	20s
Run Tests / Integration Test (1.30-strict/stable, integration)	1h 11m 33s
Run Tests / Unit Test (pilot)	42s
Run Tests / Lint Code (gateway)	21s
Run Tests / Integration Test (1.30-strict/stable, integration-tls-provider)	1h 3m 48s
Run Tests / Unit Test (gateway)	31s
Run Tests / Integration Test (1.30-strict/stable, integration-tls-secret)	1h 5m 40s
Run Tests / Check libraries (istio-gateway) / Check libraries	38s
Run Tests / Check libraries (istio-gateway) / Lint	10s
Run Tests / Check libraries (istio-pilot) / Check libraries	33s
Run Tests / Check libraries (istio-pilot) / Lint	11s
Publish Charm / Publish Charm (./charms/istio-pilot)	41m 4s
Publish Charm / Publish Charm (./charms/istio-gateway)	31m 27s
	10h 7m 56s

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