Update astroid to 2.7.3

[pyup-bot]

This PR updates astroid from 2.6.6 to 2.7.3.

Changelog

2.7.3

============================
Release date: 2021-08-30

* The transforms related to a module are applied only if this module has not been explicitly authorized to be imported
(i.e is not in AstroidManager.extension_package_whitelist). Solves the following issues if numpy is authorized to be imported
through the `extension-pkg-allow-list` option.

Closes PyCQA/pylint3342
Closes PyCQA/pylint4326

* Fixed bug in attribute inference from inside method calls.

 Closes PyCQA/pylint400

* Fixed bug in inference for superclass instance methods called
from the class rather than an instance.

 Closes 1008
 Closes PyCQA/pylint4377

* Fixed bug in inference of chained attributes where a subclass
had an attribute that was an instance of its superclass.

 Closes PyCQA/pylint4220

* Adds a brain for the ctypes module.

Closes PyCQA/pylint4896

* When processing dataclass attributes, exclude the same type hints from abc.collections
as from typing.

Closes PyCQA/pylint4895

* Apply dataclass inference to pydantic's dataclasses.

Closes PyCQA/pylint4899

2.7.2

============================
Release date: 2021-08-20

* ``BaseContainer`` is now public, and will replace ``_BaseContainer`` completely in astroid 3.0.
* The call cache used by inference functions produced by ``inference_tip``
can now be cleared via ``clear_inference_tip_cache``.

* ``astroid.const.BUILTINS`` and ``astroid.bases.BUILTINS`` are not used internally anymore
and will be removed in astroid 3.0. Simply replace this by the string 'builtins' for better
performances and clarity.

* Add inference for dataclass initializer method.

 Closes PyCQA/pylint3201

2.7.1

============================
Release date: 2021-08-16

* When processing dataclass attributes, only do typing inference on collection types.
Support for instantiating other typing types is left for the future, if desired.

Closes 1129

* Fixed LookupMixIn missing from ``astroid.node_classes``.

2.7.0

============================
Release date: 2021-08-15

* Import from ``astroid.node_classes`` and ``astroid.scoped_nodes`` has been deprecated in favor of
``astroid.nodes``. Only the imports from ``astroid.nodes`` will work in astroid 3.0.0.

* Add support for arbitrary Enum subclass hierachies

Closes PyCQA/pylint533
Closes PyCQA/pylint2224
Closes PyCQA/pylint2626

* Add inference tips for dataclass attributes, including dataclasses.field calls.
Also add support for InitVar.

Closes PyCQA/pylint2600
Closes PyCQA/pylint2698
Closes PyCQA/pylint3405
Closes PyCQA/pylint3794

* Adds a brain that deals with dynamic import of `IsolatedAsyncioTestCase` class of the `unittest` module.

Closes PyCQA/pylint4060

Links

• PyPI: https://pypi.org/project/astroid
• Changelog: https://pyup.io/changelogs/astroid/
• Repo: https://github.com/PyCQA/astroid

[codecov]

Codecov Report

Merging #99 (f50e87c) into master (9307f73) will not change coverage.
The diff coverage is n/a.

@@           Coverage Diff           @@
##           master      #99   +/-   ##
=======================================
  Coverage   67.85%   67.85%           
=======================================
  Files           2        2           
  Lines          56       56           
=======================================
  Hits           38       38           
  Misses         18       18           

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[pyup-bot]

Closing this in favor of #101