replace RUN_SCRIPTS with ADMINISTER

[jtnord]

replace RUN_SCRIPTS with ADMINISTER

RUN SCripts is deprecated and realms don;t grant it on its own without ADMINISTER as it really is ADMINISTER.

Just check ADMINISTER

Testing done

Submitter checklist

• Make sure you are opening from a topic/feature/bugfix branch (right side) and not your main branch!
• Ensure that the pull request title represents the desired changelog entry
• Please describe what you did
• Link to relevant issues in GitHub or Jira
• Link to relevant pull requests, esp. upstream and downstream changes
• Ensure you have provided tests that demonstrate the feature works or the issue is fixed

[jglick]

https://github.com/jenkinsci/ssh-credentials-plugin/pull/256/checks?check_run_id=44702436834 looks legitimate.