Update openai.py

[sourceful-rob]

Update the arguments in the start_span function. pecifically, changing the deprecated "description" to "name". This was causing a deprecation warning when running tests.

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[sentrivana]

Thank you @sourceful-rob for catching this!

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 79.87%. Comparing base (d894fc2) to head (f22b59f).
Report is 1 commits behind head on master.

✅ All tests successful. No failed tests found.

Additional details and impacted files

@@            Coverage Diff             @@
##           master    #3807      +/-   ##
==========================================
- Coverage   79.89%   79.87%   -0.02%     
==========================================
  Files         137      137              
  Lines       15371    15371              
  Branches     2608     2608              
==========================================
- Hits        12281    12278       -3     
- Misses       2221     2223       +2     
- Partials      869      870       +1     

Files with missing lines	Coverage Δ
sentry_sdk/integrations/openai.py	80.15% <ø> (ø)

... and 3 files with indirect coverage changes