fix(scrubber): Scrub request bodies that are JSON arrays

[Om-singhaI]

Description

scrub_request only calls scrub_dict on event["request"]["data"], and scrub_dict returns immediately for anything that isn't a dict. So a body that parses to a top level JSON array is skipped entirely and every secret in it ships in the clear. It happens under the default scrubber, no config needed.

scrub_list already handles this shape. Its docstring says it walks a list and any nested lists and calls scrub_dict on every dictionary it finds, and scrub_dict already hands nested lists to it when recursive is on. It just was never called on the request body.

What changed:

• scrub_request now calls scrub_dict and then scrub_list on event["request"]["data"]. Each one ignores the type it doesn't handle, so dict bodies behave exactly as before.
• Two tests in tests/test_scrubber.py, one for a list body under the default scrubber and one for a dict nested inside a list body with recursive=True.

One thing worth your call: scrub_list recurses into nested lists no matter what recursive is set to, so [[{"password": "x"}]] now gets filtered where today it isn't. That only ever filters more, never less. If you'd rather keep the shallow path exact I can gate the call on self.recursive instead.

Issues

resolves: #7543

Testing

• pytest tests/test_scrubber.py 13 passed, was 11 passed on master
• pytest tests/integrations/wsgi/test_wsgi.py 76 passed
• checking out only sentry_sdk/scrubber.py from master and rerunning: both new tests fail, assert {'data': [{'token': 'secret', ...}]} == {'data': [{'token': '[Filtered]', ...}]}
• ruff check and ruff format --check clean on sentry_sdk/scrubber.py and tests/test_scrubber.py
• Flask repro from the issue, array body goes from [{"password": "hunter2", "user": "a"}] to [{"password": "[Filtered]", "user": "a"}], object body unchanged at {"password": "[Filtered]", "user": "a"}