Fix the import line

Author: bilgeyucel

tutorials/45_Creating_a_Multi_Agent_System.ipynb

@@ -125,7 +125,7 @@
    "outputs": [],
    "source": [
     "from haystack.tools import ComponentTool\n",
-    "from haystack.components.websearch import DuckduckgoApiWebSearch\n",
+    "from duckduckgo_api_haystack import DuckduckgoApiWebSearch\n",
     "\n",
     "\n",
     "def doc_to_string(documents) -> str:\n",