Remove fmt.Println, convert to log

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Why are these changes needed?

I work on some code that integrates with kuberay and we noticed some printlns in the output. I have removed unnecessary printlns and moved useful ones to use the logger so the output will be uniform.

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Checks

• [x] I've made sure the tests are passing.
• Testing Strategy
  • [ ] Unit tests
  • [ ] Manual tests
  • [ ] This PR is not tested :(