[ci] Use nbformat 5.4.0 to avoid error on Math_Introduction.ipynb
[NbConvertApp] ERROR | Notebook JSON is invalid: data.cells[{data__cells_x}] must be valid exactly by one definition (0 matches found)
@@ -25,7 +25,7 @@ jobs:
run: |
python --version
python -m pip install --upgrade pip
- pip install --quiet pdoc3 tensorflow torch jax jaxlib plotly nbformat ipython notebook ipywidgets
+ pip install --quiet pdoc3 tensorflow torch jax jaxlib plotly "nbformat==5.4.0" ipython notebook ipywidgets
pip install .
pip list
