chore(deps): update dependency astroid to v2.5.2

This MR contains the following updates:

Package	Update	Change
astroid	patch	==2.5 -> ==2.5.2

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Release Notes

PyCQA/astroid

v2.5.2

Compare Source

============================ Release Date: 2021-03-28

• Detects import numpy as a valid numpy import.

  Closes PyCQA/pylint#​3974

• Iterate over Keywords when using ClassDef.get_children

  Closes PyCQA/pylint#​3202

v2.5.1

Compare Source

============================ Release Date: 2021-02-28

• The context.path is reverted to a set because otherwise it leads to false positives for non numpy functions.

  Closes #​895 #​899

• Don't transform dataclass ClassVars

• Improve typing.TypedDict inference

• Fix the Duplicates found in MROs false positive.

  Closes #​905 Closes PyCQA/pylint#​2717 Closes PyCQA/pylint#​3247 Closes PyCQA/pylint#​4093 Closes PyCQA/pylint#​4131 Closes PyCQA/pylint#​4145

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