add missing testpaths

Author: sentrivana

tox.ini

@@ -813,12 +813,13 @@ setenv =
     httpx: TESTPATH=tests/integrations/httpx
     huey: TESTPATH=tests/integrations/huey
     huggingface_hub: TESTPATH=tests/integrations/huggingface_hub
-    langchain: TESTPATH=tests/integrations/langchain
+    langchain-base: TESTPATH=tests/integrations/langchain
+    langchain-notiktoken: TESTPATH=tests/integrations/langchain
     launchdarkly: TESTPATH=tests/integrations/launchdarkly
     litestar: TESTPATH=tests/integrations/litestar
     loguru: TESTPATH=tests/integrations/loguru
-    openai_base: TESTPATH=tests/integrations/openai
-    openai_notiktoken: TESTPATH=tests/integrations/openai
+    openai-base: TESTPATH=tests/integrations/openai
+    openai-notiktoken: TESTPATH=tests/integrations/openai
     openai_agents: TESTPATH=tests/integrations/openai_agents
     openfeature: TESTPATH=tests/integrations/openfeature
     opentelemetry: TESTPATH=tests/integrations/opentelemetry