CLN remove trailing commas
#35925

From this set of 10 files, only the first 3 needed changes to comply if the new version of black:
- [x] pandas/tests/io/pytables/test_timezones.py
- [x] pandas/tests/io/test_feather.py
- [x] pandas/tests/io/test_s3.py
- [ ] pandas/tests/io/test_sql.py
- [ ] pandas/tests/io/test_stata.py
- [ ] pandas/tests/plotting/test_frame.py
- [ ] pandas/tests/resample/test_datetime_index.py
- [ ] pandas/tests/reshape/merge/test_merge_index_as_string.py
- [ ] pandas/tests/reshape/test_crosstab.py
- [ ] pandas/tests/reshape/test_get_dummies.py
thanks @tiagohonorato 