fix(anthropic): Patch Stream.close() and MessageStream.close() to finish spans

[alexander-alderman-webb]

Description

Close AI Client Spans when the Anthropic SDK's HTTP connection is closed and not merely when the streamed response iterator is consumed or the GC collects the private _iterator instance variable. Patch the close() method that also closes the connection.

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

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Semver Impact of This PR

🟢 Patch (bug fixes)

📋 Changelog Preview

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Bug Fixes 🐛

• (anthropic) Patch Stream.close() and MessageStream.close() to finish spans by alexander-alderman-webb in #5674

Other

• Update CHANGELOG.md by sentrivana in #5685

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Codecov Results 📊

✅ 6 passed | Total: 6 | Pass Rate: 100% | Execution Time: 1.20s

📊 Comparison with Base Branch

Metric	Change
Total Tests	—
Passed Tests	—
Failed Tests	—
Skipped Tests	—

✨ No test changes detected

All tests are passing successfully.

❌ Patch coverage is 0.00%. Project has 15976 uncovered lines.
❌ Project coverage is 21.76%. Comparing base (base) to head (head).

Files with missing lines (1)

File	Patch %	Lines
anthropic.py	6.02%	⚠️ 390 Missing

Coverage diff

@@            Coverage Diff             @@
##          main       #PR       +/-##
==========================================
- Coverage    21.80%    21.76%    -0.04%
==========================================
  Files          189       189         —
  Lines        20385     20419       +34
  Branches      7008      7018       +10
==========================================
+ Hits          4443      4443         —
- Misses       15942     15976       +34
- Partials       379       379         —

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Generated by Codecov Action

[cursor]

Cursor Bugbot has reviewed your changes and found 1 potential issue.

There are 2 total unresolved issues (including 1 from previous review).

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