Update sphinx-autodoc-typehints to 1.5.2

[pyup-bot]

This PR updates sphinx-autodoc-typehints from 1.3.0 to 1.5.2.

Changelog

1.5.2

=====

* Emit a warning instead of crashing when an unresolvable forward reference is encountered in type
annotations

1.5.1

=====

* Fixed escape characters in parameter default values getting lost during signature processing
* Replaced use of the ``config-inited`` event (which inadvertently required Sphinx 1.8) with the
``builder-inited`` event

1.5.0

=====

* The setting of the ``typing.TYPECHECKING`` flag is now configurable using the
``set_type_checking_flag`` option

1.4.0

=====

* The extension now sets ``typing.TYPECHECKING`` to ``True`` during setup to include conditional
imports which may be used in type annotations
* Fixed parameters with trailing underscores (PR by Daniel Knell)
* Fixed KeyError with private methods (PR by Benito Palacios Sánchez)
* Fixed deprecation warning about the use of formatargspec (PR by Y. Somda)
* The minimum Sphinx version is now v1.7.0

1.3.1

=====

* Fixed rendering of generic types outside the typing module (thanks to Tim Poterba for the PR)

Links

• PyPI: https://pypi.org/project/sphinx-autodoc-typehints
• Changelog: https://pyup.io/changelogs/sphinx-autodoc-typehints/

[pyup-bot]

Closing this in favor of #15