python39Packages.Fabric: format, use pytestCheckHook, update disable test comment

pkgs/development/python-modules/Fabric/default.nix

···
-{ lib, buildPythonPackage, fetchPypi
+{ lib
+, buildPythonPackage
+, fetchPypi
 , cryptography
 , invoke
 , mock
 , paramiko
-, pytest
+, pytestCheckHook
 , pytest-relaxed
 }:
 
···
   '';
 
   propagatedBuildInputs = [ invoke paramiko cryptography ];
-  checkInputs = [ pytest mock pytest-relaxed ];
+
+  checkInputs = [ pytestCheckHook pytest-relaxed mock ];
 
-  # requires pytest_relaxed, which doesnt have official support for pytest>=5
-  # https://github.com/bitprophet/pytest-relaxed/issues/12
+  # ==================================== ERRORS ====================================
+  # ________________________ ERROR collecting test session _________________________
+  # Direct construction of SpecModule has been deprecated, please use SpecModule.from_parent
+  # See https://docs.pytest.org/en/stable/deprecations.html#node-construction-changed-to-node-from-parent for more details.
   doCheck = false;
-  checkPhase = ''
-    pytest tests
-  '';
+
   pythonImportsCheck = [ "fabric" ];
 
   meta = with lib; {
     description = "Pythonic remote execution";
-    homepage    = "https://www.fabfile.org/";
-    license     = licenses.bsd2;
+    homepage = "https://www.fabfile.org/";
+    license = licenses.bsd2;
     maintainers = [ maintainers.costrouc ];
   };
 }