[FIX] fix CI

.github/workflows/install_learnware_with_source.yaml

@@ -38,10 +38,10 @@ jobs:
       run: |
         conda run -n learnware python -m pip install --upgrade pip
         conda run -n learnware python -m pip install flake8 pytest
-    
+
     - name: Lint with flake8
       run: |
-      # stop the build if there are Python syntax errors or undefined names
+        # stop the build if there are Python syntax errors or undefined names
         conda run -n learnware python -m flake8 . --count --select=E9,F63,F7,F82 --show-source --statistics
 
     - name: Install faiss for MacOS