Update pytest to 4.3.0

This PR updates [pytest](https://pypi.org/project/pytest) from **4.2.1** to **4.3.0**.



<details>
  <summary>Changelog</summary>
  
  
   ### 4.3.0
   ```
   =========================

Deprecations
------------

- `4724 &lt;https://github.com/pytest-dev/pytest/issues/4724&gt;`_: ``pytest.warns()`` now emits a warning when it receives unknown keyword arguments.

  This will be changed into an error in the future.



Features
--------

- `2753 &lt;https://github.com/pytest-dev/pytest/issues/2753&gt;`_: Usage errors from argparse are mapped to pytest&#39;s ``UsageError``.


- `3711 &lt;https://github.com/pytest-dev/pytest/issues/3711&gt;`_: Add the ``--ignore-glob`` parameter to exclude test-modules with Unix shell-style wildcards.
  Add the ``collect_ignore_glob`` for ``conftest.py`` to exclude test-modules with Unix shell-style wildcards.


- `4698 &lt;https://github.com/pytest-dev/pytest/issues/4698&gt;`_: The warning about Python 2.7 and 3.4 not being supported in pytest 5.0 has been removed.

  In the end it was considered to be more
  of a nuisance than actual utility and users of those Python versions shouldn&#39;t have problems as ``pip`` will not
  install pytest 5.0 on those interpreters.


- `4707 &lt;https://github.com/pytest-dev/pytest/issues/4707&gt;`_: With the help of new ``set_log_path()`` method there is a way to set ``log_file`` paths from hooks.



Bug Fixes
---------

- `4651 &lt;https://github.com/pytest-dev/pytest/issues/4651&gt;`_: ``--help`` and ``--version`` are handled with ``UsageError``.


- `4782 &lt;https://github.com/pytest-dev/pytest/issues/4782&gt;`_: Fix ``AssertionError`` with collection of broken symlinks with packages.
   ```
   
  
</details>


 

<details>
  <summary>Links</summary>
  
  - PyPI: https://pypi.org/project/pytest
  - Changelog: https://pyup.io/changelogs/pytest/
  - Homepage: https://docs.pytest.org/en/latest/
</details>

Author: Peter Bengtsson

requirements.txt

@@ -415,9 +415,9 @@ zopfli==0.1.6 \
     --hash=sha256:ed2293c11c2685bbd70bad0103285279406a77622e06de794d59c2180fecaa6a
 huey==1.11.0 \
     --hash=sha256:c59c35370309ffd9773e4fd0f2ca6e408eca0949aee69bf201f58729c5ef0cd1
-pytest==4.2.1 \
-    --hash=sha256:80cfd9c8b9e93f419abcc0400e9f595974a98e44b6863a77d3e1039961bfc9c4 \
-    --hash=sha256:c2396a15726218a2dfef480861c4ba37bd3952ebaaa5b0fede3fc23fddcd7f8c
+pytest==4.3.0 \
+    --hash=sha256:067a1d4bf827ffdd56ad21bd46674703fce77c5957f6c1eef731f6146bfcef1c \
+    --hash=sha256:9687049d53695ad45cf5fdc7bbd51f0c49f1ea3ecfc4b7f3fde7501b541f17f4
 pytest-django==3.4.7 \
     --hash=sha256:87c31e53ad09ca4f061b82a9d71ad1e3e399c7a5ec9d28f7c3c38a9a9afbd027 \
     --hash=sha256:3d489db7c9bd18d7c154347b1bdfb82cc6b1ec8539543508b199c77e5eb2caec