Add chunk size in streaming function

[s0und0fs1lence]

(you don't have to strictly follow this form)

Use case
Allow caller to define the chunk size, given the fact that every app may require different tradeoffs while iterating trought the data.

A clear and concise description of what is the intended usage scenario is.
Different application need different chunk size. give the caller the ability to configure it

Describe the solution you'd like

chdb_stream_query(query,format,{additional_parameters})
add a third argument to the call which includes a struct or any other thing that can allow the caller to controll how many rows are in each chunk.

A clear and concise description of what you want to happen.

Describe alternatives you've considered

Add new methods instead with the new parameter, while leaving the rest intact.

A clear and concise description of any alternative solutions or features you've considered.

Additional context

Add any other context or screenshots about the feature request here.

[wudidapaopao]

Thanks for the great suggestion! Adding a parameter to support custom chunk size for streaming queries will indeed make the feature much more flexible for users.