Decrease max_insert_delayed_streams_for_parallel_write

Why it matters

This change aims to improve stability and resource utilization by limiting the number of delayed insert streams processed in parallel during writes. It helps manage concurrency better and prevent potential performance degradation under heavy write loads.

How to use it

The feature is applied automatically by updating to the new version where the default of max_insert_delayed_streams_for_parallel_write is set to 100. If needed, users can manually adjust this setting in the server configuration to control the number of delayed insert streams for parallel writes.