Merge pull request #727 from cybozu-go/support-k8s-1.30 #1030

Job	Run time
Supported Kubernetes versions End-to-End Tests (8.4.2, 1.29.4)	1h 16m 17s
Integration tests with MySQL (8.0.28)	6m 24s
Supported Kubernetes versions End-to-End Tests (8.4.2, 1.30.4)	1h 15m 31s
Integration tests with MySQL (8.0.36)	6m 32s
Supported MySQL versions End-to-End Tests (8.0.28, 1.31.0)	1h 15m 13s
Supported Kubernetes versions End-to-End Tests (8.4.2, 1.31.0)	1h 15m 35s
Upgrade Test	16m 43s
Supported MySQL versions End-to-End Tests (8.0.36, 1.31.0)	1h 16m 34s
Integration tests with MySQL (8.0.37)	6m 6s
Supported MySQL versions End-to-End Tests (8.0.37, 1.31.0)	1h 17m 52s
Integration tests with MySQL (8.0.39)	6m 23s
Supported MySQL versions End-to-End Tests (8.0.39, 1.31.0)	1h 16m 30s
Supported MySQL versions End-to-End Tests (8.4.2, 1.31.0)	1h 15m 0s
Integration tests with MySQL (8.4.2)	6m 20s
Confirm finishing all tests	1s
	10h 57m 1s

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