feat: poa authority query

[Reecepbcups]

Summary

When removing params, we did not re-add a way to query the given POA admin from a node.

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 59.98%. Comparing base (e3e1f58) to head (395d1e0).
Report is 1 commits behind head on main.

Additional details and impacted files

@@            Coverage Diff             @@
##             main     #218      +/-   ##
==========================================
+ Coverage   59.94%   59.98%   +0.03%     
==========================================
  Files          44       44              
  Lines        2112     2114       +2     
==========================================
+ Hits         1266     1268       +2     
  Misses        662      662              
  Partials      184      184              

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