chore(dependencies): update dependency pytest to ^5.4.3

[renovate]

This PR contains the following updates:

Package	Type	Update	Change
pytest (source)	dev-dependencies	patch	^5.4.2 -> ^5.4.3

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Release Notes

pytest-dev/pytest

v5.4.3

Compare Source

pytest 5.4.3 (2020-06-02)

Bug Fixes

• #​6428: Paths appearing in error messages are now correct in case the current working directory has
  changed since the start of the session.
• #​6755: Support deleting paths longer than 260 characters on windows created inside tmpdir.
• #​6956: Prevent pytest from printing ConftestImportFailure traceback to stdout.
• #​7150: Prevent hiding the underlying exception when ConfTestImportFailure is raised.
• #​7215: Fix regression where running with --pdb would call the tearDown methods of unittest.TestCase
  subclasses for skipped tests.

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