fix(openai): Only finish relevant spans in Chat Completions patches

[alexander-alderman-webb]

Description

OpenAI Completions spans are only created in _new_sync_chat_completion() and _new_async_chat_completion().

Exit spans in these functions when the openai library function raises an exception.

Resolves an edge case where _new_sync_chat_completion() or _new_async_chat_completion() exits early and does not create a span and get_current_span() therefore returns a non-openai span.

Issues

Reminders

• Please add tests to validate your changes, and lint your code using tox -e linters.
• Add GH Issue ID & Linear ID (if applicable)
• PR title should use conventional commit style (feat:, fix:, ref:, meta:)
• For external contributors: CONTRIBUTING.md, Sentry SDK development docs, Discord community

[github-actions]

Codecov Results 📊

✅ 12 passed | Total: 12 | Pass Rate: 100% | Execution Time: 1.61s

All tests are passing successfully.

❌ Patch coverage is 0.00%. Project has 15183 uncovered lines.

Files with missing lines (1)

File	Patch %	Lines
openai.py	4.23%	⚠️ 656 Missing

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