Handle Bokeh toolbar UserWarning

[hoxbro]

With the release of Bokeh 3.2.2 we are starting to get the following warnings both in CI and in a simple addition of plots.

/home/shh/Repos/holoviz/holoviews/holoviews/plotting/bokeh/plot.py:987: UserWarning: found multiple competing values for 'toolbar.active_drag' property; using the latest value
  layout_plot = gridplot(
/home/shh/Repos/holoviz/holoviews/holoviews/plotting/bokeh/plot.py:987: UserWarning: found multiple competing values for 'toolbar.active_scroll' property; using the latest value
  layout_plot = gridplot(

import holoviews as hv
import pandas as pd

hv.extension("bokeh")
hv.Curve(range(10)) + hv.Curve(range(10))

[droumis]

can confirm I receive these too