feat(boto3): Add S3 extension

[pabloDeputter]

Description

Adds the following request/response attributes: aws.s3.bucket, aws.s3.key, aws.s3.upload_id, aws.s3.copy_source, aws.s3.delete, aws.s3.part_number, http.response.body.size (number of bytes in payload), file.size (represents the total file/object size)

Following tests were removed/moved from old test_s3.py (old boto3 integration only added s3 streaming responses support):

• test_basic() removed - basically only tests botocore xml parsing behavior; generic span behavior is already tested in test_client.py.
• test_streaming() / test_streaming_close() removed - behavior is already tested in test_client.py with mock HTTP server.
• test_span_origin() removed - overlaps with existing tests.
• test_omit_url_data_if_parsing_fails() moved to test_client.py and simplified since it's generic instrumentation.
• test_breadcrumb() and test_url_query_data_collection_breadcrumb() moved and combined to test_client.py, once again since it's generic instrumentation.

Issues

Resolves #7576

[github-actions]

Codecov Results 📊

✅ 55547 passed | ❌ 1 failed | ⏭️ 2750 skipped | Total: 58298 | Pass Rate: 95.28% | Execution Time: 149m 4s

📊 Comparison with Base Branch

Metric	Change
Total Tests	📉 -82087
Passed Tests	📉 -77615
Failed Tests	—
Skipped Tests	📉 -4472

➕ New Tests (1)

View new tests

• test_cache_spans_item_size
  • File: tests.integrations.django.test_cache_module
  • Status: ❌ Failing

➖ Removed Tests (1)

View removed tests

• test_cache_spans_decorator[True]
  • File: tests.integrations.django.test_cache_module

❌ Failed Tests

test_cache_spans_item_size

File: tests.integrations.django.test_cache_module
Suite: py3.14-django-v5.2.17
Error: tests/integrations/django/test_cache_module.py:546: in test_cache_spans_item_size assert not spans[0]["attributes"]["cache.hit"] E assert not True

Stack Trace

tests/integrations/django/test_cache_module.py:546: in test_cache_spans_item_size
    assert not spans[0]["attributes"]["cache.hit"]
E   assert not True

✅ Patch coverage is 100.00%. Project has 2072 uncovered lines.
❌ Project coverage is 90.02%. Comparing base (2fe6694) to head (d0394ea).

Coverage diff

@@            Coverage Diff             @@
##        master       #PR       +/-##
==========================================
- Coverage    90.38%    90.02%    -0.36%
==========================================
  Files          202       187       -15
  Lines        26552     20766     -5786
  Branches      9858      7160     -2698
==========================================
+ Hits         23997     18694     -5303
- Misses        2555      2072      -483
- Partials      1487      1213      -274

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