Use image hosted on ghcr.io #254

Job	Run time
Upgrade Test	16m 25s
Integration tests with MySQL (8.0.28) / dbtest	5m 49s
Integration tests with MySQL (8.0.31) / dbtest	6m 53s
Integration tests with MySQL (8.0.32) / dbtest	5m 50s
Supported Kubernetes versions End-to-End Tests (8.0.32, 1.25.9) / e2e	7m 22s
Supported Kubernetes versions End-to-End Tests (8.0.32, 1.26.4) / e2e	7m 0s
Supported Kubernetes versions End-to-End Tests (8.0.32, 1.27.1) / e2e	7m 9s
Supported MySQL versions End-to-End Tests (8.0.28, 1.27.1) / e2e	6m 38s
Supported MySQL versions End-to-End Tests (8.0.31, 1.27.1) / e2e	6m 57s
Supported MySQL versions End-to-End Tests (8.0.32, 1.27.1) / e2e	6m 58s
	1h 17m 1s

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