check pydantic version

Author: alexmojaki

tests/otel_integrations/test_langchain.py

@@ -1,16 +1,21 @@
 import os
 import sys
 
+import pydantic
 import pytest
 from dirty_equals import IsPartialDict
 from inline_snapshot import snapshot
 
 from logfire._internal.exporters.test import TestExporter
+from logfire._internal.utils import get_version
 
 os.environ['LANGSMITH_OTEL_ENABLED'] = 'true'
 os.environ['LANGSMITH_TRACING'] = 'true'
 
-pytestmark = pytest.mark.skipif(sys.version_info < (3, 9), reason='Langgraph does not support 3.8')
+pytestmark = pytest.mark.skipif(
+    sys.version_info < (3, 9) or get_version(pydantic.__version__) < get_version('2.5.0'),
+    reason='Langgraph does not support 3.8',
+)
 
 
 @pytest.mark.vcr()