tentative fix for 17

Author: masci

.github/workflows/nightly.yml

@@ -67,17 +67,9 @@ jobs:
           pip install nbconvert ipython
           pip install "pyworld<=0.2.12" espnet espnet-model-zoo pydub
           pip install farm-haystack[pdf]
-
-      - name: Install Haystack Extras text2speech dependencies
-        run: |
+          pip install scipy --upgrade
           pip install farm-haystack-text2speech
-
-      - name: Install Hugging Face datasets
-        run: |
           pip install "datasets>=2.6.1"
-
-      - name: Install ipywidgets for tutorial 24
-        run: |
           pip install ipywidgets
 
       - name: Convert notebook to Python