### Why are the changes needed?
I observed ClickHouse integration test failure in GHA, after some investigation, the root cause is https://github.com/testcontainers/testcontainers-java/pull/9942
```
/entrypoint.sh: neither CLICKHOUSE_USER nor CLICKHOUSE_PASSWORD is set, disabling network access for user 'default'
```
In short, the recent ClickHouse docker image does not allow the `default` user to connect without a password, unfortunately, `testcontainers-scala-clickhosue` does not expose API to set CLICKHOSUE_USER and CLICKHOUSE_PASSWORD, as a workaround, I pin `clickhouse-server:24.3.15`(the latest version has no such restriction) until a fixed version of Testcontainers available.
This PR also switches the `clickhouse-jdbc`'s classifier from `http` to `shaded`, the reason is, `http` does not ship ApacheHttpClient5, previously, it happened to work because `iceberg-runtime-spark3.5_2.12` packaged un-relocated ApacheHttpClient5 classes, but it gets fixed in Iceberg 1.8.0, then `clickhouse-jdbc:http` stop working.
```
java.lang.NoClassDefFoundError: org/apache/hc/core5/http/HttpRequest
```
Additionally, this PR bumps `clickhouse-jdbc` from 0.6.0 to 0.6.5.
### How was this patch tested?
Pass GHA.
### Was this patch authored or co-authored using generative AI tooling?
No.
Closes#6915 from pan3793/fix-ch-test.
Closes#6915
996f095e0 [Cheng Pan] Pin clickhouse-server:24.3.15
d633df07c [Cheng Pan] Bump clickhouse-jdbc 0.6.5
214c8a227 [Cheng Pan] Fix ClickHouse integration tests
Authored-by: Cheng Pan <chengpan@apache.org>
Signed-off-by: Cheng Pan <chengpan@apache.org>
d49c6314d0