enhance: add resource group declarative api

[shanghaikid]

releated: milvus-io/milvus#32282

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[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 96.89%. Comparing base (4d1ede0) to head (fdec0ac).
Report is 1 commits behind head on main.

Additional details and impacted files

@@           Coverage Diff           @@
##             main     #313   +/-   ##
=======================================
  Coverage   96.89%   96.89%           
=======================================
  Files          43       43           
  Lines        2644     2644           
  Branches      651      651           
=======================================
  Hits         2562     2562           
  Misses         76       76           
  Partials        6        6           

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