Fix flake8 test in pipeline

.github/workflows/python-package.yml

@@ -32,7 +32,7 @@ jobs:
         if [ -f requirements.txt ]; then pip install -r requirements.txt; fi
     - name: Lint with flake8
       run: |
-        flake8 sdf
+        flake8 onedm
     - name: Test with pytest
       run: |
         pytest