Clean up ScyllaCluster GET ClusterRole

[mflendrich]

Description of your changes:
Deletes the GET verb permission from the member ClusterRole because Operator >=1.16 no longer needs it.

Which issue is resolved by this Pull Request:
Resolves #2141

[scylla-operator-bot]

Skipping CI for Draft Pull Request.
If you want CI signal for your change, please convert it to an actual PR.
You can still manually trigger a test run with /test all

[scylla-operator-bot]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: mflendrich

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[mflendrich]

/test all

[mflendrich]

/kind cleanup
/priority important-soon

[rzetelskik]

Please remove the prefixes from the commit subject lines (explained internally, sadly we don't have the contributing guide now).
The 2nd commit subject line should also use the imperative mood - we usually name the make update commits as Update generated/Update autogenerated.
Other than that it looks good to me, thanks @mflendrich

[mflendrich]

@rzetelskik commits reworded, please look now

[mflendrich]

/retest

[mflendrich]

/retest

[rzetelskik]

@mflendrich almost there, but the commit subject line should answer the following sentence If applied, this commit will <your subject line here> (ref #2130 (comment)). So "Run make update" is not quite what we're aiming for.

[zimnx]

lgtm, except commit naming as per rzetelskik comments.
/assign rzetelskik

[mflendrich]

@rzetelskik done, please look again if this looks right.

Process feedback: When a review expects rewording (of a commit message or something else), it would make my life easier (and make the review comment more actionable, and better communicate the reviewer's expectation) to see a direct wording suggestion.

[rzetelskik]

/lgtm