Fix CodeQL URL substring assertion

Author: theCyberTech

lib/crewai-tools/tests/tools/stagehand_tool_test.py

@@ -164,7 +164,13 @@ def test_navigate_command(mock_run, stagehand_tool):
     )
 
     # Assertions
-    assert "https://example.com" in result
+    assert result == "Successfully navigated to https://example.com"
+    mock_run.assert_called_once_with(
+        stagehand_tool,
+        instruction="Go to example.com",
+        url="https://example.com",
+        command_type="navigate",
+    )
 
 
 @patch(