chore(boto3): Remove transaction-based tracing

[alexander-alderman-webb]

Description

Issues

Closes #7079

Reminders

• Please add tests to validate your changes, and lint your code using uv run ruff.
• 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 📊

✅ 107689 passed | ⏭️ 5338 skipped | Total: 113027 | Pass Rate: 95.28% | Execution Time: 348m 36s

📊 Comparison with Base Branch

Metric	Change
Total Tests	📉 -12795
Passed Tests	📉 -11371
Failed Tests	—
Skipped Tests	📉 -1424

All tests are passing successfully.

✅ Patch coverage is 87.50%. Project has 2240 uncovered lines.
✅ Project coverage is 90.54%. Comparing base (base) to head (head).

Files with missing lines (1)

File	Patch %	Lines
sentry_sdk/integrations/boto3.py	87.50%	⚠️ 2 Missing and 2 partials

Coverage diff

@@            Coverage Diff             @@
##          main       #PR       +/-##
==========================================
+ Coverage    90.29%    90.54%    +0.25%
==========================================
  Files          193       185        -8
  Lines        25601     23685     -1916
  Branches      9436      8720      -716
==========================================
+ Hits         23116     21445     -1671
- Misses        2485      2240      -245
- Partials      1435      1366       -69

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