ArrowGenerator is broken on caching with latest fsspec release

[skshetry]

Description

Broken by fsspec/filesystem_spec#1755.

Traceback (most recent call last):]
  File "/Users/user/work/iterative/datachain/src/datachain/lib/arrow.py", line 90, in iter_records
    for record_batch in ds.to_batches(**kw):
                        ^^^^^^^^^^^^^^^^^^^
AttributeError: 'coroutine' object has no attribute 'closed'
/Users/user/work/iterative/datachain/src/datachain/lib/arrow.py:90: RuntimeWarning: coroutine 'AbstractFileSystem.open' was never awaited
  for record_batch in ds.to_batches(**kw):

Thanks to @dreadatour for catching the bug.

Version Info