fix typo

.github/workflows/python-package.yml

@@ -49,7 +49,7 @@ jobs:
     - name: Install dependencies
       run: |
         python -m pip install --upgrade pip
-        pip -e '.[testing]' --extra-index-url https://download.pytorch.org/whl/cpu
+        pip install -e '.[testing]' --extra-index-url https://download.pytorch.org/whl/cpu
         #         Install optional git dependencies
         #        pip install bleurt@https://github.com/google-research/bleurt/archive/b610120347ef22b494b6d69b4316e303f5932516.zip#egg=bleurt
         if [ -f requirements.txt ]; then pip install -r requirements.txt; fi