Allow disabling cert-generator with a Helm value

[fabian4]

trafficstars

Proposed changes

Allow disabling cert-generator with a Helm value

Closes #4173

Checklist

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• [x] I have read the CONTRIBUTING doc
• [ ] I have added tests that prove my fix is effective or that my feature works
• [x] I have checked that all unit tests pass after adding my changes
• [ ] I have updated necessary documentation
• [x] I have rebased my branch onto main
• [x] I will ensure my PR is targeting the main branch and pulling from my branch from my own fork

Release notes

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Allow disabling cert-generator with a Helm value