LOG-5649: Refactor SA permissions for obs api

[jcantrill]

Description

This PR:

• refactors the SA permissions validations for the OBS api

Links

https://issues.redhat.com/browse/LOG-5649

cc @Clee2691 @vparfonov

[openshift-ci-robot]

@jcantrill: This pull request references LOG-5649 which is a valid jira issue.

Warning: The referenced jira issue has an invalid target version for the target branch this PR targets: expected the sub-task to target the "4.8.0" version, but no target version was set.

In response to this:

Description

This PR:

• refactors the SA permissions validations for the OBS api

Links

https://issues.redhat.com/browse/LOG-5649

cc @Clee2691 @vparfonov

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[openshift-ci]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: jcantrill

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[openshift-ci]

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[cahartma]

/lgtm