KAFKA-18247: Use log4j2 yaml to rewrite the fix of KAFKA-18145

[Yunyung]

As mentioned in the Jira, add the fix for KAFKA-18145 to the log4j2 yaml, so the test_dynamic_logging test can use a non-root logger.

Jira: https://issues.apache.org/jira/browse/KAFKA-18247

For verification, we need to wait until #18185 gets fixed.

Before:

TBD

After:

TBD

Committer Checklist (excluded from commit message)

• Verify design and implementation
• Verify test coverage and CI build status
• Verify documentation (including upgrade notes)

[chia7712]

[DEBUG - 2024-12-16 04:50:20,257 - connect_distributed_test - test_dynamic_logging - lineno:464]: Listed all loggers via REST API: {'': {'level': 'DEBUG', 'last_modified': None}, 'org.apache.kafka.clients.consumer.ConsumerConfig': {'level': 'ERROR', 'last_modified': None}, 'root': {'level': 'DEBUG', 'last_modified': None}}

run tests/kafkatest/tests/connect/connect_distributed_test.py::ConnectDistributedTest.test_dynamic_logging with this patch, and the required logger is existent now. +1