export_to_parquet.py: custom input support

[benoistlaurent]

Input files & directories are hard-coded in export_to_parquet.py.
Not handy when wrote files in tmp...

❯❯  python scripts/export_to_parquet.py
2023-08-18 16:14:50 INFO /Users/laurent/Downloads/mdws/scripts/export_to_parquet.py
2023-08-18 16:14:50 INFO Convert datasets to parquet format.
Traceback (most recent call last):
  File "/Users/laurent/Downloads/mdws/scripts/export_to_parquet.py", line 87, in <module>
    tmp_df = pd.read_csv(name, sep="\t", dtype={"dataset_id": str})
             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/Users/laurent/.virtualenvs/mdws/lib/python3.11/site-packages/pandas/io/parsers/readers.py", line 912, in read_csv
    return _read(filepath_or_buffer, kwds)
           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/Users/laurent/.virtualenvs/mdws/lib/python3.11/site-packages/pandas/io/parsers/readers.py", line 577, in _read
    parser = TextFileReader(filepath_or_buffer, **kwds)
             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/Users/laurent/.virtualenvs/mdws/lib/python3.11/site-packages/pandas/io/parsers/readers.py", line 1407, in __init__
    self._engine = self._make_engine(f, self.engine)
                   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/Users/laurent/.virtualenvs/mdws/lib/python3.11/site-packages/pandas/io/parsers/readers.py", line 1661, in _make_engine
    self.handles = get_handle(
                   ^^^^^^^^^^^
  File "/Users/laurent/.virtualenvs/mdws/lib/python3.11/site-packages/pandas/io/common.py", line 859, in get_handle
    handle = open(
             ^^^^^
FileNotFoundError: [Errno 2] No such file or directory: 'data/zenodo_datasets.tsv'

Source code export_to_parquet.py#L85:

for repository in ["zenodo", "figshare", "osf"]:
        name = f"data/{repository}_datasets.tsv"