fix: install default resources regardless of CRD maintenance flag

[xeniape]

Description

Fixes stackabletech/issues#885 for listener-operator. This PR:

• removes the patch permission from listenerclasses, it wasn't needed
• moves listenerclasses creation to after the CRD establishment
• didn't adjust any comments/docs mentioned in Setting maintenance.customResourceDefinitions.maintain: false stops listener- and secret-operator from creating their default resources issues#885 because this PR basically fixes the code to behave to how it was already documented

If approved, I will apply the same change to the secret-operator

Definition of Done Checklist

• Not all of these items are applicable to all PRs, the author should update this template to only leave the boxes in that are relevant
• Please make sure all these things are done and tick the boxes

Author

• Changes are OpenShift compatible
• CRD changes approved
• CRD documentation for all fields, following the style guide.
• Helm chart can be installed and deployed operator works
• Integration tests passed (for non trivial changes)
• Changes need to be "offline" compatible
• Links to generated (nightly) docs added
• Release note snippet added

Reviewer

• Code contains useful comments
• Code contains useful logging statements
• (Integration-)Test cases added
• Documentation added or updated. Follows the style guide.
• Changelog updated
• Cargo.toml only contains references to git tags (not specific commits or branches)

Acceptance

• Feature Tracker has been updated
• Proper release label has been added
• Links to generated (nightly) docs added
• Release note snippet added
• Add type/deprecation label & add to the deprecation schedule
• Add type/experimental label & add to the experimental features tracker

[NickLarsenNZ]

LGTM

[xeniape]

Thank you!