🚀 request help: How to modify the image repository?

### Request description

when i create ComputeNode, the default image are "busybox:1.36" ,"apache/shardingsphere-proxy:${.spec.serverVersion}“. Due to network issues, can't pull these two images.
So, How can i modify the repository of the image???

### Environment

ShardingSphere-Operator Version 0.3.0

