chore(dependencies): Update yarl to 1.3.0

[pyup-bot]

This PR updates yarl from 1.2.6 to 1.3.0.

Changelog

1.3.0

------------------

* Fix annotations for ``query`` parameter (207)

* An incoming query sequence can have int variables (the same as for
Mapping type) (208)

* Add ``URL.explicit_port`` property (218)

* Give a friendlier error when port cant be converted to int (168)

* ``bool(URL())`` now returns ``False`` (272)

Links

• PyPI: https://pypi.org/project/yarl
• Changelog: https://pyup.io/changelogs/yarl/
• Repo: https://github.com/aio-libs/yarl/