Why this change?
The test was randomly failing in
https://github.com/discourse/discourse/actions/runs/6936264158/job/18868087113
with the following failure:
```
expect do user.update_ip_address!("127.0.0.1") end.to change {
UserIpAddressHistory.where(user_id: user.id).count
}.by(1)
expected `UserIpAddressHistory.where(user_id: user.id).count` to have changed by 1, but was changed by 0
```
This is due to the fact that ActiveRecord will actually cache the result
of `UserIpAddressHistory.where(user_id: user.id).count`. However,
`User.update_ip_address!` relies on mini_sql and does not go through
ActiveRecord. As a result, the query cache is not cleared and hence the
flakiness.
What does this change do?
This change uses the `uncached` method provided by ActiveRecord when
we are fetching the count.
1510e1d1ea