Format code according to conventions (#16435)

lib/python/qmk/cli/pytest.py

@@ -12,7 +12,8 @@ from milc import cli
 def pytest(cli):
     """Run several linting/testing commands.
     """
-    nose2 = cli.run(['nose2', '-v', '-t' 'lib/python', *cli.args.test], capture_output=False, stdin=DEVNULL)
+    nose2 = cli.run(['nose2', '-v', '-t'
+                     'lib/python', *cli.args.test], capture_output=False, stdin=DEVNULL)
     flake8 = cli.run(['flake8', 'lib/python'], capture_output=False, stdin=DEVNULL)
 
     return flake8.returncode | nose2.returncode