feat(interactive): Make use of all available cpus at startup

[zhanglei1949]

At startup, try to make use of all available cpus on hosts.
Also fix a deep copy bug in test_robustness.py.

The CI failures are due to rust version, and will be fixed in PR: #4373

[github-actions]

Please check the preview of the documentation changes at
https://3f805b90.graphscope-docs-preview.pages.dev

[codecov-commenter]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 58.78%. Comparing base (1d118e9) to head (66542b5).
Report is 3 commits behind head on main.

❗ There is a different number of reports uploaded between BASE (1d118e9) and HEAD (66542b5). Click for more details.

HEAD has 2 uploads less than BASE

Flag	BASE (1d118e9)	HEAD (66542b5)
	3	1

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #4343      +/-   ##
==========================================
- Coverage   65.38%   58.78%   -6.61%     
==========================================
  Files         114       12     -102     
  Lines       12038      592   -11446     
==========================================
- Hits         7871      348    -7523     
+ Misses       4167      244    -3923     

see 102 files with indirect coverage changes

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