feat: set current working dir for linux

[RyanJWard]

Description

We had someone report an issue where starting the service on linux is slow due to searching many directories. If we set a working dir it should fix this

Checklist

• I have tested my changes locally.
• I have added necessary documentation or updated existing documentation.
• I have followed the coding style guidelines of this project.
• I have added appropriate unit tests.
• I have reviewed my changes before submitting this pull request.
• I have linked the issue or issues that are solved to the PR if any.
• I have assigned this PR to myself.
• I have added the minimum version decorator to any new backend method implemented.
• I have made sure that the title of my PR follows Conventional commits style (e.g. feat: extrude circle to cylinder)

[codecov]

Codecov Report

❌ Patch coverage is 25.00000% with 3 lines in your changes missing coverage. Please review.
✅ Project coverage is 95.34%. Comparing base (3069acb) to head (55df0b5).
⚠️ Report is 1 commits behind head on main.

Files with missing lines	Patch %	Lines
...ansys/geometry/core/connection/product_instance.py	25.00%	3 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #2349      +/-   ##
==========================================
- Coverage   95.36%   95.34%   -0.02%     
==========================================
  Files         168      168              
  Lines       11101    11103       +2     
==========================================
  Hits        10586    10586              
- Misses        515      517       +2     

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