core, community: deprecate tool.__call__ (#20900)

Does not update docs.

libs/community/tests/integration_tests/utilities/test_arxiv.py

@@ -151,7 +151,7 @@ def _load_arxiv_from_universal_entry(**kwargs: Any) -> BaseTool:
 
 def test_load_arxiv_from_universal_entry() -> None:
     arxiv_tool = _load_arxiv_from_universal_entry()
-    output = arxiv_tool("Caprice Stanley")
+    output = arxiv_tool.invoke("Caprice Stanley")
     assert (
         "On Mixing Behavior of a Family of Random Walks" in output
     ), "failed to fetch a valid result"

libs/community/tests/integration_tests/utilities/test_duckduckdgo_search_api.py

@@ -20,7 +20,7 @@ def ddg_installed() -> bool:
 def test_ddg_search_tool() -> None:
     keywords = "Bella Ciao"
     tool = DuckDuckGoSearchRun()
-    result = tool(keywords)
+    result = tool.invoke(keywords)
     print(result)  # noqa: T201
     assert len(result.split()) > 20
 
@@ -29,6 +29,6 @@ def test_ddg_search_tool() -> None:
 def test_ddg_search_news_tool() -> None:
     keywords = "Tesla"
     tool = DuckDuckGoSearchResults(source="news")
-    result = tool(keywords)
+    result = tool.invoke(keywords)
     print(result)  # noqa: T201
     assert len(result.split()) > 20

libs/community/tests/integration_tests/utilities/test_pubmed.py

@@ -147,7 +147,7 @@ def test_load_pupmed_from_universal_entry() -> None:
         "Examining the Validity of ChatGPT in Identifying "
         "Relevant Nephrology Literature"
     )
-    output = pubmed_tool(search_string)
+    output = pubmed_tool.invoke(search_string)
     test_string = (
         "Examining the Validity of ChatGPT in Identifying "
         "Relevant Nephrology Literature: Findings and Implications"