perf: Don't maintain order when maintain_order=False in new streaming sinks

[coastalwhite]

No description provided.

[codecov]

Codecov Report

Attention: Patch coverage is 58.42697% with 37 lines in your changes missing coverage. Please review.

Please upload report for BASE (main@fe56f69). Learn more about missing BASE report.
Report is 3 commits behind head on main.

Files with missing lines	Patch %	Lines
...s/polars-stream/src/async_primitives/linearizer.rs	33.33%	16 Missing ⚠️
crates/polars-plan/src/dsl/options.rs	0.00%	6 Missing ⚠️
crates/polars-stream/src/nodes/io_sinks/csv.rs	62.50%	3 Missing ⚠️
crates/polars-stream/src/nodes/io_sinks/ipc.rs	0.00%	3 Missing ⚠️
crates/polars-stream/src/nodes/io_sinks/json.rs	62.50%	3 Missing ⚠️
crates/polars-stream/src/nodes/io_sinks/parquet.rs	0.00%	3 Missing ⚠️
crates/polars-python/src/lazyframe/sink.rs	81.81%	2 Missing ⚠️
crates/polars-stream/src/pipe.rs	90.00%	1 Missing ⚠️

Additional details and impacted files

@@           Coverage Diff           @@
##             main   #21586   +/-   ##
=======================================
  Coverage        ?   79.78%           
=======================================
  Files           ?     1604           
  Lines           ?   231422           
  Branches        ?     2639           
=======================================
  Hits            ?   184646           
  Misses          ?    46167           
  Partials        ?      609           

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