Flaky test: tests/sentry/hybridcloud/rpc/test_caching.py::test_caching_many

Failing test: `tests/sentry/hybridcloud/rpc/test_caching.py::test_caching_many`
Sentry sha: 3ae13ebdfdfbfd0d73e8a04d635b9ae4d95251de
Run: https://github.com/getsentry/sentry/actions/runs/22294946148

```
tests/sentry/hybridcloud/rpc/test_caching.py:184: in test_caching_many
assert wrapped == direct
E AssertionError: assert RpcUser(id=36...enticators=[]) == RpcUser(id=36...enticators=[])
E 
E Full diff:
E - RpcUser(id=362, pk=362, name='', email='a0ba79c62c09456bba7c049650e8b5e5@example.com', username='a0ba79c62c09456bba7c049650e8b5e5@example.com', actor_id=None, display_name='a0ba79c62c09456bba7c049650e8b5e5@example.com', label='a0ba79c62c09456bba7c049650e8b5e5@example.com', is_superuser=False, is_authenticated=True, is_anonymous=False, is_active=True, is_staff=False, is_unclaimed=False, last_active=datetime.datetime(2026, 2, 23, 6, 18, 5, 70090, tzinfo=datetime.timezone.utc), is_sentry_app=False, password_usable=True, is_password_expired=False, roles=frozenset(), permissions=frozenset(), avatar=None, emails=frozenset({'a0ba79c62c09456bba7c049650e8b5e5@example.com'}), useremails=[RpcUserEmail(id=364, email='a0ba79c62c09456bba7c049650e8b5e5@example.com', is_verified=True)], authenticators=[])
E + RpcUser(id=360, pk=360, name='', email='a6920aa8bb1f48449650403ec504293c@example.com', username='a6920aa8bb1f48449650403ec504293c@example.com', actor_id=None, display_name='a6920aa8bb1f48449650403ec504293c@example.com', label='a6920aa8bb1f48449650403ec504293c@example.com', is_superuser=False, is_authenticated=True, is_anonymous=False, is_active=True, is_staff=False, is_unclaimed=False, last_active=datetime.datetime(2026, 2, 23, 6, 18, 5, 30566, tzinfo=datetime.timezone.utc), is_sentry_app=False, password_usable=True, is_password_expired=False, roles=frozenset(), permissions=frozenset(), avatar=None, emails=frozenset({'a6920aa8bb1f48449650403ec504293c@example.com'}), useremails=[RpcUserEmail(id=362, email='a6920aa8bb1f48449650403ec504293c@example.com', is_verified=True)], authenticators=[])
```

Start with tests/sentry/hybridcloud/rpc/test_caching.py::test_caching_many and reproduce the failure using the linked GitHub Actions run. Inspect the assertion at line 184 and compare the cached and direct results shown in the failure. Done means the test no longer flakes and reliably verifies equivalent results.

Written by the indexing model from the issue text.