Support redunce volume size #295

Job	Run time
Upgrade Test	2m 49s
Integration tests with MySQL (8.0.31) / dbtest	4m 33s
Integration tests with MySQL (8.0.28) / dbtest	4m 34s
Integration tests with MySQL (8.0.32) / dbtest	4m 53s
Supported Kubernetes versions End-to-End Tests (8.0.32, 1.25.9) / e2e	3m 2s
Supported Kubernetes versions End-to-End Tests (8.0.32, 1.26.4) / e2e	3m 23s
Supported Kubernetes versions End-to-End Tests (8.0.32, 1.27.1) / e2e	3m 22s
Supported MySQL versions End-to-End Tests (8.0.28, 1.27.1) / e2e	3m 2s
Supported MySQL versions End-to-End Tests (8.0.31, 1.27.1) / e2e	3m 15s
Supported MySQL versions End-to-End Tests (8.0.32, 1.27.1) / e2e	3m 21s
	36m 14s

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