HDDS-8456. Support read-only administrators in SCM

[z-bb]

What changes were proposed in this pull request?

Scm supports read only administrators.

What is the link to the Apache JIRA

https://issues.apache.org/jira/browse/HDDS-8456

How was this patch tested?

ut

[adoroszlai]

Thanks @z-bb for working on this.

@z-bb please check failures:

https://github.com/z-bb/ozone/actions/runs/5309440423/jobs/9610104266#step:6:528

and

https://github.com/z-bb/ozone/actions/runs/5309440423/jobs/9610548522#step:5:280

[adoroszlai]

Thanks @z-bb for updating the patch. The same checks are still failing:

https://github.com/z-bb/ozone/actions/runs/5319769143/jobs/9632667900
https://github.com/z-bb/ozone/actions/runs/5319769143/jobs/9633149405

[z-bb]

Thanks @z-bb for updating the patch. The same checks are still failing:

https://github.com/z-bb/ozone/actions/runs/5319769143/jobs/9632667900 https://github.com/z-bb/ozone/actions/runs/5319769143/jobs/9633149405

@adoroszlai Thanks for review, I redid the next modification

[adoroszlai]

Thanks @z-bb for updating the patch, LGTM.