[WIP] generate: support conversion webhooks

[estroz]

Description of the change:

• internal/generate/clusterserviceversion: add CRD names that have conversion webhook configs matching a validating/mutating webhook config's service.

Motivation for the change: OLM supports conversion webhooks

/cc @varshaprasad96

Checklist

If the pull request includes user-facing changes, extra documentation is required:

• Add a new changelog fragment in changelog/fragments (see changelog/fragments/00-template.yaml)
• Add or update relevant sections of the docs website in website/content/en/docs

[estroz]

Blocked by #3761

[openshift-bot]

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[estroz]

Closing this since the spec for a CSV's conversion webhooks has changed.