Support TS and AlterConfig for kafka_internal topics

[daisukebe]

Who is this for and what problem do they have today?

In a transaction heavy environment, kafka_internal/tx tends to grow and eats the disk space.

What are the success criteria?

• Support TS for the internal topics
• Make the topic conf live updatable

Why is solving this problem impactful?

If we support Tiered Storage for the internal topics, it will save the disk space much. Besides, having an ability being able to live-update the topic properties helps operations in the field. Currently we have a cluster wide config transaction_coordinator_delete_retention_ms but it applies only upon the topic creation.

Additional notes