Upgrade astroid to 2.7.2

Author: Pierre-Sassoulas

requirements_test_min.txt

@@ -1,4 +1,4 @@
 -e .
-astroid==2.7.1  # Pinned to a specific version for tests
+astroid==2.7.2  # Pinned to a specific version for tests
 pytest~=6.2
 pytest-benchmark~=3.4

setup.cfg

@@ -43,7 +43,7 @@ project_urls =
 packages = find:
 install_requires =
     appdirs>=1.4.0
-    astroid>=2.7.1,<2.8 # (You should also upgrade requirements_test_min.txt)
+    astroid>=2.7.2,<2.8 # (You should also upgrade requirements_test_min.txt)
     isort>=4.2.5,<6
     mccabe>=0.6,<0.7
     toml>=0.7.1