py-faker: update to 4.1.2.

`4.1.2 - 1&-August-2020 <https://github.com/joke2k/faker/compare/v4.1.1...v4.1.2>`__
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* Extend Person Provider to support non-binary suffixes and prefixes. Thank you @crd.
* Add ``safe_domain_name`` generator. Thanks @crd.
* Fix max_value/positive ``pyfloat`` interaction. Thanks @coiax.
* Update ``bban_format`` for ``fi_FI`` locale. Thanks @ALMP-SallaH.
* Fix ``person.ja_JP`` kana and roman characters. Thanks @yameholo.
* Add ``json`` and ``fixed_width`` generators. Thank you @johnbrandborg.
* Add SWIFT code provider methods: ``swift``, ``swift8`` and ``swift11``. Thanks @malefice.
* Add ``es_ES`` internet provider. Thanks @mondeja.
* Update ``bban_format`` for ``fr_FR`` locale. Thanks @r3gis3r.
* Update ``fr_FR`` ``job`` provider. Thanks @mondeja.
* Add ``es_ES`` ``barcode`` provider. Thanks @mondeja.
* Add parser argument support. Thanks @johnbrandborg.

(wiz)