feat: Split from a source stream

[laysakura]

Fixes: #132

[codecov]

Codecov Report

Merging #133 (d5710e7) into main (80352b1) will increase coverage by 0.08%.
The diff coverage is 100.00%.

@@            Coverage Diff             @@
##             main     #133      +/-   ##
==========================================
+ Coverage   87.55%   87.63%   +0.08%     
==========================================
  Files         202      203       +1     
  Lines       12366    12448      +82     
==========================================
+ Hits        10827    10909      +82     
  Misses       1539     1539              

Impacted Files	Coverage Δ
...eam_engine/autonomous_executor/task/source_task.rs	98.97% <100.00%> (+0.95%)	⬆️
springql-core/tests/feat_pipeline.rs	100.00% <100.00%> (ø)
...task/pump_subtask/query_subtask/collect_subtask.rs	96.92% <0.00%> (-1.54%)	⬇️

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