Simplify flake8 command in lint workflow

Author: MonicaTirumalaraju

.github/workflows/lint.yml

@@ -22,10 +22,5 @@ jobs:
       - name: Install flake8
         run: pip install flake8
 
-      - name: Run flake8
-        run: |
-          flake8 . \
-            --count \
-            --max-line-length=120 \
-            --exclude=.git,__pycache__,*.egg-info \
-            --statistics
+      - - name: Run flake8
+        run: flake8 . --count --max-line-length=120 --exclude=.git,__pycache__,*.egg-info --statistics