pin holoviews version to avoid hvplot errors

[AjayThorve]

This should resolve the hvplot chart errors when working with rapids-24.06:

cell 18 - "TypeError: can only concatenate list (not "tuple") to list". 

[review-notebook-app[bot]]

Check out this pull request on 

See visual diffs & provide feedback on Jupyter Notebooks.

---

Powered by ReviewNB