Fix log message when demote annotation is added #311

Job	Run time
Upgrade Test	23m 41s
Integration tests with MySQL (8.0.28) / dbtest	4m 45s
Integration tests with MySQL (8.0.31) / dbtest	5m 4s
Integration tests with MySQL (8.0.32) / dbtest	4m 38s
Supported Kubernetes versions End-to-End Tests (8.0.32, 1.25.9) / e2e	34m 24s
Supported Kubernetes versions End-to-End Tests (8.0.32, 1.26.4) / e2e	33m 40s
Supported Kubernetes versions End-to-End Tests (8.0.32, 1.27.1) / e2e	34m 44s
Supported MySQL versions End-to-End Tests (8.0.28, 1.27.1) / e2e	38m 26s
Supported MySQL versions End-to-End Tests (8.0.32, 1.27.1) / e2e	33m 36s
Supported MySQL versions End-to-End Tests (8.0.31, 1.27.1) / e2e	33m 59s
	4h 6m 57s

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