Try something

Author: Viicos

.github/workflows/third_party.yml

@@ -65,8 +65,9 @@ jobs:
       - name: Run tests with typing_extensions main branch
         working-directory: pydantic
         run: |
-          uv add --editable ../typing-extensions-latest
           uv sync --all-packages --group dev
+          uv pip uninstall typing-extensions
+          uv pip install --editable ../typing-extensions-latest
 
           printf "\n\nINSTALLED DEPENDENCIES ARE:\n\n"
           uv pip list