fix: put k6 crds in the appropriate folder specified by Helm

[mariuskimmina]

This PR aims to put CRDs folder in the appropriate folder specified by Helm which is charts/crds, so that we can skip installing CRDs whenever we want.
Please refer to: https://helm.sh/docs/topics/charts/#custom-resource-definitions-crds

I recon that an options installCRDs has been added here #342 but it would imo be better to follow the recommended structure and let helms skip-crds option handle this.

I'd like to see one of these two options

• have both options of skip-crds and installCRDs
• only keep the standardized skip-crds and clean up installCRDs

[CLAassistant]

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[mariuskimmina]

Ah, I see, this would loose the option to template out CRDs - so keeping both installCRDs and using skip-crds may not be an option.

Relevant discussion on the topic: cert-manager/cert-manager#6179

[mariuskimmina]

Perhaps #505 would actually be the better solution