Fix flake8 code style: remove whitespace from blank lines

Author: ns-fboucault

tests/test_cli.py

@@ -320,7 +320,7 @@ def test_guess_method_none_with_request_items_raises_error(self):
         """
         Regression test for #1614: method=None with request_items
         should give helpful error, not AssertionError.
-        
+
         Tests that the problematic state doesn't trigger an AssertionError.
         The full CLI integration test below covers the actual error message.
         """
@@ -333,7 +333,7 @@ def test_guess_method_none_with_request_items_raises_error(self):
         self.parser.args.ignore_stdin = False
         self.parser.env = MockEnvironment()
         self.parser.has_input_data = False
-        
+
         # The key test: this should NOT raise AssertionError
         # (It will try to call self.error() which needs full parser setup,
         # but the important thing is the assertion is gone)
@@ -354,7 +354,7 @@ def test_bearer_auth_before_method_and_url_gives_error(self):
                 args=['POST', '--auth-type', 'bearer', '--auth', 'test_token', 'https://example.org'],
                 env=MockEnvironment()
             )
-        
+
         # Should exit with error status, not AssertionError
         assert exc_info.value.code == 2