feat(arq): Support span streaming

[alexander-alderman-webb]

Depends on #6507

Description

In the streaming path, use

• messaging.message.id instead of the arq_task_id extra

Tags/Extras not set as attributes

• arq_task_id
• arq_task_retry
• arq-job.task
• arq-job.args
• arq-job.kwargs
• arq-job.retry

Adapting Tests

sed commands used for converting transaction context managers:

• sed -i '' 's/with start_transaction():/with sentry_sdk.traces.start_span(name="custom parent"):/g'
• sed -i '' 's/with start_transaction() as transaction:/with sentry_sdk.traces.start_span(name="custom parent") as span:/g'

sed commands used for converting event capture:

• sed -i '' 's/capture_events,/capture_items,/g'
• sed -i '' 's/events = capture_events()/items = capture_items("event", "transaction", "span")/g'
• sed -i '' 's/event["spans"]/spans/g'
• sed -i '' 's/init_fixture_method(/init_fixture_method(span_streaming, /g'
• sed -i '' 's/(event,) = events/spans = [item.payload for item in items if item.type == "span"]/g'

sed commands used for converting op:

• sed -i '' 's/"op"/["attributes"]["sentry.op"]/g' tests/integrations/rq/test_rq.py

sed commands used for converting origin:

• sed -i '' 's/["origin"]/["attributes"]["sentry.origin"]/g'

Issues

Closes#6000

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 📊

✅ 88722 passed | ⏭️ 6025 skipped | Total: 94747 | Pass Rate: 93.64% | Execution Time: 300m 46s

📊 Comparison with Base Branch

Metric	Change
Total Tests	📈 +182
Passed Tests	📈 +182
Failed Tests	—
Skipped Tests	—

All tests are passing successfully.

✅ Patch coverage is 100.00%. Project has 2474 uncovered lines.
✅ Project coverage is 89.39%. Comparing base (base) to head (head).

Files with missing lines (1)

File	Patch %	Lines
sentry_sdk/integrations/arq.py	100.00%	⚠️ 1 partials

Coverage diff

@@ Coverage Diff @@## main #PR +/-##
==========================================
+ Coverage 89.37% 89.39% +0.02%
==========================================
Files 192 192 —
Lines 23304 23320 +16
Branches 8012 8020 +8
==========================================
+ Hits 20827 20846 +19- Misses 2477 2474 -3- Partials 1313 1308 -5

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