Bump astroid from 2.5.1 to 2.5.3

Bumps [astroid](https://github.com/PyCQA/astroid) from 2.5.1 to 2.5.3.
- [Release notes](https://github.com/PyCQA/astroid/releases)
- [Changelog](https://github.com/PyCQA/astroid/blob/master/ChangeLog)
- [Commits](pylint-dev/astroid@astroid-2.5.1...astroid-2.5.3)

Signed-off-by: dependabot-preview[bot] <[email protected]>

Author: dependabot-preview[bot]

test-requirements.txt

@@ -8,7 +8,7 @@ appdirs==1.4.4
     # via black
 astor==0.8.1
     # via -r test-requirements.in
-astroid==2.5.1
+astroid==2.5.3
     # via pylint
 async-generator==1.10
     # via -r test-requirements.in