Replace fs with fsspec

[goodwanghan]

No description provided.

[codecov-commenter]

Codecov Report

All modified and coverable lines are covered by tests ✅

Comparison is base (83f2b2b) 100.00% compared to head (01f0e24) 100.00%.

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Additional details and impacted files

@@            Coverage Diff            @@
##            master      #523   +/-   ##
=========================================
  Coverage   100.00%   100.00%           
=========================================
  Files          128       128           
  Lines        12306     12256   -50     
=========================================
- Hits         12306     12256   -50     

Files	Coverage Δ
fugue/__init__.py	100.00% <ø> (ø)
fugue/_utils/io.py	100.00% <100.00%> (ø)
fugue/dataframe/utils.py	100.00% <100.00%> (ø)
fugue/execution/execution_engine.py	100.00% <ø> (ø)
fugue/execution/native_execution_engine.py	100.00% <100.00%> (ø)
fugue/workflow/_checkpoint.py	100.00% <100.00%> (ø)
fugue_dask/_io.py	100.00% <100.00%> (ø)
fugue_dask/execution_engine.py	100.00% <100.00%> (ø)
fugue_duckdb/_io.py	100.00% <100.00%> (ø)
fugue_duckdb/execution_engine.py	100.00% <100.00%> (ø)
... and 6 more

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