test dispatch all to updated multiscan

[nameexhaustion]

opened for testing purposes

[codecov]

Codecov Report

Attention: Patch coverage is 83.30565% with 201 lines in your changes missing coverage. Please review.

Project coverage is 80.50%. Comparing base (1d87ea8) to head (43017f1).

Files with missing lines	Patch %	Lines
crates/polars-stream/src/nodes/io_sources/csv.rs	86.78%	53 Missing ⚠️
crates/polars-stream/src/nodes/io_sources/ipc.rs	80.35%	44 Missing ⚠️
...s/polars-stream/src/nodes/io_sources/ndjson/mod.rs	72.90%	42 Missing ⚠️
.../polars-stream/src/nodes/io_sources/parquet/mod.rs	88.29%	24 Missing ⚠️
crates/polars-io/src/ipc/ipc_reader_async.rs	0.00%	16 Missing ⚠️
...src/nodes/io_sources/ndjson/negative_slice_pass.rs	0.00%	12 Missing ⚠️
crates/polars-expr/src/reduce/convert.rs	0.00%	4 Missing ⚠️
...polars-stream/src/nodes/io_sources/parquet/init.rs	92.59%	2 Missing ⚠️
crates/polars-stream/src/physical_plan/lower_ir.rs	87.50%	2 Missing ⚠️
...odes/io_sources/multi_file_reader/extra_ops/mod.rs	0.00%	1 Missing ⚠️
... and 1 more

Additional details and impacted files

@@            Coverage Diff             @@
##             main   #21960      +/-   ##
==========================================
+ Coverage   80.46%   80.50%   +0.04%     
==========================================
  Files        1636     1639       +3     
  Lines      236948   236911      -37     
  Branches     2696     2696              
==========================================
+ Hits       190650   190722      +72     
+ Misses      45664    45555     -109     
  Partials      634      634              

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