fix(anthropic): remove unneeded beta flags (#32893)

- Beta isn't needed for search result tests anymore
- Add TODO for other tests to come back when generally available
- Regenerate remote MCP snapshot after some testing (now the same, but
fresher)
- Bump deps

docs/docs/integrations/chat/anthropic.ipynb

@@ -998,8 +998,6 @@
     "    ]\n",
     "```\n",
     "\n",
-    "We also need to specify the `search-results-2025-06-09` beta when instantiating ChatAnthropic. You can see an end-to-end example below.\n",
-    "\n",
     "<details>\n",
     "<summary>End to end example with LangGraph</summary>\n",
     "\n",

libs/partners/anthropic/tests/integration_tests/test_chat_models.py

@@ -942,6 +942,10 @@ def test_web_search() -> None:
 
 @pytest.mark.vcr
 def test_code_execution() -> None:
+    """Note: this is a beta feature.
+
+    TODO: Update to remove beta once generally available.
+    """
     llm = ChatAnthropic(
         model="claude-sonnet-4-20250514",  # type: ignore[call-arg]
         betas=["code-execution-2025-05-22"],
@@ -990,6 +994,10 @@ def test_code_execution() -> None:
 
 @pytest.mark.vcr
 def test_remote_mcp() -> None:
+    """Note: this is a beta feature.
+
+    TODO: Update to remove beta once generally available.
+    """
     mcp_servers = [
         {
             "type": "url",
@@ -1047,6 +1055,10 @@ def test_remote_mcp() -> None:
 
 @pytest.mark.parametrize("block_format", ["anthropic", "standard"])
 def test_files_api_image(block_format: str) -> None:
+    """Note: this is a beta feature.
+
+    TODO: Update to remove beta once generally available.
+    """
     image_file_id = os.getenv("ANTHROPIC_FILES_API_IMAGE_ID")
     if not image_file_id:
         pytest.skip()
@@ -1081,6 +1093,10 @@ def test_files_api_image(block_format: str) -> None:
 
 @pytest.mark.parametrize("block_format", ["anthropic", "standard"])
 def test_files_api_pdf(block_format: str) -> None:
+    """Note: this is a beta feature.
+
+    TODO: Update to remove beta once generally available.
+    """
     pdf_file_id = os.getenv("ANTHROPIC_FILES_API_PDF_ID")
     if not pdf_file_id:
         pytest.skip()
@@ -1111,7 +1127,6 @@ def test_search_result_tool_message() -> None:
     """Test that we can pass a search result tool message to the model."""
     llm = ChatAnthropic(
         model="claude-3-5-haiku-latest",  # type: ignore[call-arg]
-        betas=["search-results-2025-06-09"],
     )
 
     @tool
@@ -1164,7 +1179,6 @@ def test_search_result_tool_message() -> None:
 def test_search_result_top_level() -> None:
     llm = ChatAnthropic(
         model="claude-3-5-haiku-latest",  # type: ignore[call-arg]
-        betas=["search-results-2025-06-09"],
     )
     input_message = HumanMessage(
         [

libs/partners/anthropic/uv.lock

@@ -505,7 +505,7 @@ typing = [
 
 [[package]]
 name = "langchain-core"
-version = "0.3.75"
+version = "0.3.76"
 source = { editable = "../../core" }
 dependencies = [
     { name = "jsonpatch" },
@@ -563,7 +563,7 @@ typing = [
 
 [[package]]
 name = "langchain-tests"
-version = "0.3.20"
+version = "0.3.21"
 source = { editable = "../../standard-tests" }
 dependencies = [
     { name = "httpx" },
@@ -602,7 +602,8 @@ test = [{ name = "langchain-core", editable = "../../core" }]
 test-integration = []
 typing = [
     { name = "langchain-core", editable = "../../core" },
-    { name = "mypy", specifier = ">=1.17.1,<2" },
+    { name = "mypy", specifier = ">=1.17.1,<1.18" },
+    { name = "types-pyyaml", specifier = ">=6.0.12.2,<7.0.0.0" },
 ]
 
 [[package]]