chore(model-profiles): refresh model profile data (#37771)

Automated refresh of model profile data for all in-monorepo partner
integrations via `langchain-profiles refresh`.

🤖 Generated by the `refresh_model_profiles` workflow.

Co-authored-by: mdrxy <61371264+mdrxy@users.noreply.github.com>

libs/partners/anthropic/langchain_anthropic/data/_profiles.py

@@ -466,6 +466,31 @@ _PROFILES: dict[str, dict[str, Any]] = {
         "image_tool_message": True,
         "structured_output": True,
     },
+    "claude-opus-4-8": {
+        "name": "Claude Opus 4.8",
+        "release_date": "2026-05-28",
+        "last_updated": "2026-05-28",
+        "open_weights": False,
+        "max_input_tokens": 1000000,
+        "max_output_tokens": 128000,
+        "text_inputs": True,
+        "image_inputs": True,
+        "audio_inputs": False,
+        "pdf_inputs": True,
+        "video_inputs": False,
+        "text_outputs": True,
+        "image_outputs": False,
+        "audio_outputs": False,
+        "video_outputs": False,
+        "reasoning_output": True,
+        "tool_calling": True,
+        "attachment": True,
+        "temperature": False,
+        "image_url_inputs": True,
+        "pdf_tool_message": True,
+        "image_tool_message": True,
+        "structured_output": False,
+    },
     "claude-sonnet-4-0": {
         "name": "Claude Sonnet 4 (latest)",
         "release_date": "2025-05-22",