ARROW-10140: [Python][C++] Add test for map column of a parquet file created from pyarrow and pandas
ARROW-10140: [Python][C++] Add test for map column of a parquet file created from pyarrow and pandas

Adding a test to `parquet/test_pandas.py` for a case when `pa.Table` is created from Pandas with map column.

cc @jorisvandenbossche

Closes #12176 from AlenkaF/ARROW-10140

Authored-by: Alenka Frim <f50e75d4c31e511ffacbf2da8f53d7ed4bd8eabe@gmail.com>
Signed-off-by: Joris Van den Bossche <36c737f86d71d8ee1ddeb1e5c83102ee5de8f97c@gmail.com>

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