ref(client)!: Remove EventScrubber and the event_scrubber option

[ericapisani]

data_collection is now the default way to control what data the SDK collects, so the always-on EventScrubber is no longer needed. The expectation is that, if people need to filter out request bodies, etc., that they use the before_send callback.

Removes sentry_sdk.scrubber (EventScrubber, DEFAULT_DENYLIST, DEFAULT_PII_DENYLIST), the scrubbing step in _prepare_event, and the event_scrubber init option. Passing event_scrubber= to init now raises a TypeError.

Refs PY-2798
Refs #7566

[linear-code]

PY-2798

[github-actions]

Codecov Results 📊

✅ 57188 passed | ❌ 1 failed | ⏭️ 2709 skipped | Total: 59898 | Pass Rate: 95.48% | Execution Time: 162m 56s

📊 Comparison with Base Branch

Metric	Change
Total Tests	📉 -76961
Passed Tests	📉 -72502
Failed Tests	📈 +1
Skipped Tests	📉 -4460

➕ New Tests (1)

View new tests

• test_input_attributes_nonstreaming_chat[messages0-expected_system_instructions0-expected_input_messages0]
  • File: tests.integrations.mistral.test_mistral
  • Status: ❌ Failing

❌ Failed Tests

test_input_attributes_nonstreaming_chat[messages0-expected_system_instructions0-expected_input_messages0]

File: tests.integrations.mistral.test_mistral
Suite: py3.10-mistral-v2.6.0
Error: KeyError: 140591437570048

Stack Trace

tests/integrations/mistral/test_mistral.py:389: in test_input_attributes_nonstreaming_chat
    sentry_init(
tests/conftest.py:349: in inner
    client = sentry_sdk.Client(*a, **kw)
sentry_sdk/client.py:262: in __init__
    self._init_impl()
sentry_sdk/client.py:412: in _init_impl
    self.integrations = setup_integrations(
sentry_sdk/integrations/__init__.py:217: in setup_integrations
    for integration_cls in iter_default_integrations(
sentry_sdk/integrations/__init__.py:44: in iter_default_integrations
    yield getattr(import_module(module), cls)
/usr/lib/python3.10/importlib/__init__.py:126: in import_module
    return _bootstrap._gcd_import(name[level:], package, level)
<frozen importlib._bootstrap>:1050: in _gcd_import
    ???
<frozen importlib._bootstrap>:1024: in _find_and_load
    ???
<frozen importlib._bootstrap>:171: in __enter__
    ???
<frozen importlib._bootstrap>:123: in acquire
    ???
E   KeyError: 140591437570048

✅ Patch coverage is 100.00%. Project has 2070 uncovered lines.
❌ Project coverage is 90.01%. Comparing base (b8d3978) to head (08b6c64).

Coverage diff

@@            Coverage Diff             @@
##        master       #PR       +/-##
==========================================
- Coverage    90.25%    90.01%    -0.24%
==========================================
  Files          195       178       -17
  Lines        26195     20715     -5480
  Branches      9758      7260     -2498
==========================================
+ Hits         23641     18645     -4996
- Misses        2554      2070      -484
- Partials      1484      1215      -269

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