Ignore Bokeh UserWarning for multiple active properties in toolbar

[hoxbro]

Resolves #5869

The warnings we are seeing are the tools we are actually setting in:

holoviews/holoviews/plotting/bokeh/element.py

Lines 698 to 705 in 6dcdb9a

	def _set_active_tools(self, plot):
	"Activates the list of active tools"
	if plot is None or self.toolbar == "disable":
	return
	if self.active_tools is None:
	enabled_tools = set(self.default_tools + self.tools)
	active_tools = {'pan', 'wheel_zoom'} & enabled_tools

We are using our merge_tools for merging tools instead of Bokeh.

No special attention has been given to Bokeh 2, as it will be removed in #5891

[codecov-commenter]

Codecov Report

Merging #5873 (789c6d5) into main (0b76098) will increase coverage by 0.00%.
The diff coverage is 100.00%.

@@           Coverage Diff           @@
##             main    #5873   +/-   ##
=======================================
  Coverage   88.28%   88.28%           
=======================================
  Files         311      311           
  Lines       64370    64372    +2     
=======================================
+ Hits        56830    56832    +2     
  Misses       7540     7540           

Flag	Coverage Δ
ui-tests	23.35% <0.00%> (-0.01%)	⬇️

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Files Changed	Coverage Δ
holoviews/plotting/bokeh/plot.py	91.85% <100.00%> (+0.02%)	⬆️

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[philippjfr]

Looks good, only just realized that the new merge_tools code is something I only implemented recently as part of the Bokeh 3.0 migration. The logic in there makes sense and matches our required semantics much better than what Bokeh does.