chore(lib): Update cert_handler library to v1 #1132

Job	Run time
Run Tests / Observability Integration Test (1.25-strict/stable)	32s
Run Tests / Integration Test (1.27-strict/stable, integration)	43s
Run Tests / Observability Integration Test (1.26-strict/stable)	30s
Publish Charm / Generate the Charm Matrix	7s
Run Tests / Integration Test (1.27-strict/stable, integration-tls-provider)	41s
Run Tests / Lint Code (pilot)	20s
Run Tests / Integration Test (1.27-strict/stable, integration-tls-secret)	43s
Run Tests / Unit Test (pilot)	39s
Run Tests / Lint Code (gateway)	21s
Run Tests / Integration Test (1.30-strict/stable, integration)	44s
Run Tests / Unit Test (gateway)	29s
Run Tests / Integration Test (1.30-strict/stable, integration-tls-provider)	44s
Run Tests / Integration Test (1.30-strict/stable, integration-tls-secret)	45s
Run Tests / Check libraries (istio-gateway) / Lint	12s
Run Tests / Check libraries (istio-pilot) / Check libraries	25s
Run Tests / Check libraries (istio-gateway) / Check libraries	26s
Run Tests / Check libraries (istio-pilot) / Lint	10s
Publish Charm / Publish Charm (./charms/istio-pilot)	16s
Publish Charm / Publish Charm (./charms/istio-gateway)	18s
	9m 5s

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