Milvus default image to 2.3.1, bump version

[haorenfsa]

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[sre-ci-robot]

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[codecov]

Codecov Report

All modified lines are covered by tests ✅

Comparison is base (cf9987c) 80.16% compared to head (858b160) 80.16%.

Additional details and impacted files

@@           Coverage Diff           @@
##             main      #17   +/-   ##
=======================================
  Coverage   80.16%   80.16%           
=======================================
  Files          47       47           
  Lines        4760     4760           
=======================================
  Hits         3816     3816           
  Misses        797      797           
  Partials      147      147           

Files	Coverage Δ
pkg/config/config.go	86.84% <ø> (ø)

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[sre-ci-robot]

New changes are detected. LGTM label has been removed.