milvus default to v2.4.15, bump version

[haorenfsa]

/cc @zwd1208 @LoveEachDay

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[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 80.94%. Comparing base (6cb2ff5) to head (2406919).
Report is 1 commits behind head on main.

Additional details and impacted files

@@           Coverage Diff           @@
##             main     #205   +/-   ##
=======================================
  Coverage   80.94%   80.94%           
=======================================
  Files          57       57           
  Lines        6367     6367           
=======================================
  Hits         5154     5154           
  Misses       1017     1017           
  Partials      196      196           

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