test modified prelease

Author: bcwu

.github/workflows/main.yml

@@ -40,7 +40,7 @@ jobs:
     - uses: actions/setup-python@v2
       with:
         python-version: 3.8.x
-    - run: pip install --pre -r requirements.txt
+    - run: pip install -r requirements.txt
     - run: pip freeze
     - run: make fmt
     - run: make lint