Fix Milvus ML PreCommit flakes from parallel Docker startup

[aIbrahiim]

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[codecov]

Codecov Report

❌ Patch coverage is 0% with 13 lines in your changes missing coverage. Please review.
✅ Project coverage is 60.26%. Comparing base (6ed0635) to head (5a48c90).
⚠️ Report is 24 commits behind head on master.

Files with missing lines	Patch %	Lines
sdks/python/apache_beam/ml/rag/test_utils.py	0.00%	13 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff            @@
##             master   #39005   +/-   ##
=========================================
  Coverage     60.25%   60.26%           
  Complexity    20572    20572           
=========================================
  Files          3318     3318           
  Lines        315452   315476   +24     
  Branches      17142    17142           
=========================================
+ Hits         190073   190110   +37     
+ Misses       116830   116817   -13     
  Partials       8549     8549           

Flag	Coverage Δ
python	79.29% <0.00%> (+0.02%)	⬆️

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