Use context for logging extra

[sentrivana]

We're moving away from using extra on the event in favor of contexts

Ref #4687

[codecov]

❌ 17 Tests Failed:

Tests completed	Failed	Passed	Skipped
20843	17	20826	1098

View the top 3 failed test(s) by shortest run time

tests.integrations.redis.test_redis_cache_module::test_cache_basic

Stack Traces | 0.087s run time

.../integrations/redis/test_redis_cache_module.py:52: in test_cache_basic
    connection = FakeStrictRedis()
.tox/py3.11-redis-v4/lib/python3.11.../site-packages/fakeredis/_connection.py:185: in __init__
    super().__init__(**kwds)
E   TypeError: Redis.__init__() got an unexpected keyword argument 'lib_name'

tests.integrations.redis.test_redis_cache_module::test_cache_keys

Stack Traces | 0.087s run time

.../integrations/redis/test_redis_cache_module.py:91: in test_cache_keys
    connection = FakeStrictRedis()
.tox/py3.11-redis-v4/lib/python3.11.../site-packages/fakeredis/_connection.py:185: in __init__
    super().__init__(**kwds)
E   TypeError: Redis.__init__() got an unexpected keyword argument 'lib_name'

tests.integrations.redis.test_redis_cache_module::test_no_cache_basic

Stack Traces | 0.087s run time

.../integrations/redis/test_redis_cache_module.py:26: in test_no_cache_basic
    connection = FakeStrictRedis()
.tox/py3.11-redis-v4/lib/python3.11.../site-packages/fakeredis/_connection.py:185: in __init__
    super().__init__(**kwds)
E   TypeError: Redis.__init__() got an unexpected keyword argument 'lib_name'

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[sentrivana]

DB / lint failures are unrelated (fixed on master, but not yet on potel-base)

[cursor]

Bug: Test Coverage Loss for Sensitive Data Scrubbing

The test_extra_scrubbing test (formerly test_breadcrumb_extra_scrubbing) lost critical coverage for sensitive data scrubbing. It no longer verifies that logging extra data is scrubbed, especially since this data now goes to event["contexts"]["logging"]. This gap could allow sensitive information like passwords or auth tokens to leak. The test also removed coverage for breadcrumb scrubbing and _meta assertions.