Fixes the hangs up issue in Python test

[sighingnow]

Fixes #2349

[codecov-commenter]

Codecov Report

Merging #2354 (fba0d7b) into main (b6ddee7) will increase coverage by 23.16%.
The diff coverage is 100.00%.

Additional details and impacted files

@@             Coverage Diff             @@
##             main    #2354       +/-   ##
===========================================
+ Coverage   43.59%   66.76%   +23.16%     
===========================================
  Files          88       88               
  Lines        9714     9718        +4     
===========================================
+ Hits         4235     6488     +2253     
+ Misses       5479     3230     -2249     

Impacted Files	Coverage Δ
python/graphscope/client/rpc.py	72.38% <100.00%> (-8.21%)	⬇️
python/graphscope/client/session.py	72.74% <100.00%> (+4.56%)	⬆️
...on/graphscope/tests/kubernetes/test_demo_script.py	0.00% <0.00%> (-81.16%)	⬇️
python/graphscope/deploy/kubernetes/cluster.py	23.41% <0.00%> (-52.78%)	⬇️
python/graphscope/deploy/kubernetes/utils.py	12.31% <0.00%> (-52.22%)	⬇️
python/graphscope/tests/unittest/test_java_app.py	53.01% <0.00%> (-46.99%)	⬇️
...n/graphscope/deploy/kubernetes/resource_builder.py	25.61% <0.00%> (-45.87%)	⬇️
...thon/graphscope/tests/kubernetes/test_with_mars.py	0.00% <0.00%> (-43.75%)	⬇️
python/graphscope/analytical/app/java_app.py	24.36% <0.00%> (-27.92%)	⬇️
python/graphscope/interactive/query.py	69.51% <0.00%> (-14.64%)	⬇️
... and 46 more

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