feat: deprecating product_version in favor of version

[RobPasMue]

Description

Coming from user request to enhance UX. We should deprecate the "product_version" input and just simplify it to "version". Also, str and int should be allowed as input.

[codecov]

Codecov Report

Attention: Patch coverage is 45.45455% with 24 lines in your changes missing coverage. Please review.

Project coverage is 90.40%. Comparing base (db1753f) to head (72170b0).
Report is 2 commits behind head on main.

Files with missing lines	Patch %	Lines
...ansys/geometry/core/connection/product_instance.py	16.00%	21 Missing ⚠️
src/ansys/geometry/core/connection/launcher.py	84.21%	3 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #1998      +/-   ##
==========================================
- Coverage   90.46%   90.40%   -0.06%     
==========================================
  Files         136      136              
  Lines        9717     9730      +13     
==========================================
+ Hits         8790     8796       +6     
- Misses        927      934       +7     

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