fix: 812 anthropic fix (#822)

<!-- .github/pull_request_template.md -->

## Description
Fixes Anthropic bug as reported by the user
https://github.com/topoteretes/cognee/issues/812

## DCO Affirmation
I affirm that all code in every commit of this pull request conforms to
the terms of the Topoteretes Developer Certificate of Origin.

CONTRIBUTING.md

@@ -97,7 +97,7 @@ git push origin feature/your-feature-name
 
 2. Create a Pull Request:
    - Go to the [**cognee** repository](https://github.com/topoteretes/cognee)
-   - Click "Compare & Pull Request"
+   - Click "Compare & Pull Request" and open a PR against dev branch
    - Fill in the PR template with details about your changes
 
 ## 5. 📜 Developer Certificate of Origin (DCO)

cognee/infrastructure/llm/anthropic/adapter.py

@@ -18,7 +18,7 @@ class AnthropicAdapter(LLMInterface):
         import anthropic
 
         self.aclient = instructor.patch(
-            create=anthropic.Anthropic().messages.create, mode=instructor.Mode.ANTHROPIC_TOOLS
+            create=anthropic.AsyncAnthropic().messages.create, mode=instructor.Mode.ANTHROPIC_TOOLS
         )
 
         self.model = model