Fix CI environment: Pin anthropic version and install punkt_tab

Author: Lemo Robot

.github/workflows/run_tests.yaml

@@ -30,6 +30,7 @@ jobs:
         pip install pyyaml
         pip install pytest
         pip install -e .[torch]
+        python -m nltk.downloader punkt_tab
 
     - name: Run unit tests
       env:

pyproject.toml

@@ -5,7 +5,7 @@ requires-python = ">=3.9"
 readme = "README.md"
 dependencies = [
     "aiolimiter",
-    "anthropic",
+    "anthropic==0.29.2",
     "backoff",
     "beartype>=0.12.0",
     "blobfile",