ref(boto3): Move crumbs to integration

[sentrivana]

Description

Set boto3 breadcrumbs in the integration directly, without relying on maybe_create_breadcrumbs_from_span.

Also, add breadcrumb tests to test_s3.py and remove the maybe_create_breadcrumbs_from_span util now that nothing needs it anymore.

Issues

Closes #7067

[cursor]

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

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[github-actions]

Codecov Results 📊

✅ 105373 passed | ❌ 1 failed | ⏭️ 6687 skipped | Total: 112061 | Pass Rate: 94.03% | Execution Time: 369m 9s

📊 Comparison with Base Branch

Metric	Change
Total Tests	📈 +1400
Passed Tests	📈 +1389
Failed Tests	📈 +1
Skipped Tests	📈 +10

➕ New Tests (1)

View new tests

• test_continuous_profiler_auto_start_and_stop_sampled_span_streaming[non-experiment-thread]
  • File: tests.profiler.test_continuous_profiler
  • Status: ❌ Failing

❌ Failed Tests

test_continuous_profiler_auto_start_and_stop_sampled_span_streaming[non-experiment-thread]

File: tests.profiler.test_continuous_profiler
Suite: py3.7-common
Error: AssertionError: profiler should not be running assert 'a3c91530abfb4f6696ec501e475bb793' is None + where 'a3c91530abfb4f6696ec501e475bb793' = get_profiler_id()

Stack Trace

tests/profiler/test_continuous_profiler.py:896: in test_continuous_profiler_auto_start_and_stop_sampled_span_streaming
    assert get_profiler_id() is None, "profiler should not be running"
E   AssertionError: profiler should not be running
E   assert 'a3c91530abfb4f6696ec501e475bb793' is None
E    +  where 'a3c91530abfb4f6696ec501e475bb793' = get_profiler_id()

✅ Patch coverage is 100.00%. Project has 2476 uncovered lines.
✅ Project coverage is 90.18%. Comparing base (base) to head (head).

Files with missing lines (1)

File	Patch %	Lines
sentry_sdk/integrations/boto3.py	100.00%	⚠️ 4 partials

Coverage diff

@@            Coverage Diff             @@
##          main       #PR       +/-##
==========================================
+ Coverage    90.14%    90.18%    +0.04%
==========================================
  Files          193       193         —
  Lines        25147     25223       +76
  Branches      9136      9176       +40
==========================================
+ Hits         22669     22747       +78
- Misses        2478      2476        -2
- Partials      1431      1434        +3

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