Remove warnings #1414

Job	Run time
Run pre-commit hooks	37s
UI tests on ubuntu-latest with Python 3.9	6m 24s
Pytest on 3.8, Bokeh 2, ubuntu-latest	23m 16s
Pytest on 3.8, Bokeh 3, ubuntu-latest	17m 5s
Pytest on 3.11, Bokeh 2, ubuntu-latest	18m 0s
Pytest on 3.11, Bokeh 3, ubuntu-latest	22m 32s
Pytest on 3.8, Bokeh 2, macos-latest	40m 32s
Pytest on 3.8, Bokeh 3, macos-latest	30m 43s
Pytest on 3.11, Bokeh 2, macos-latest	32m 5s
Pytest on 3.11, Bokeh 3, macos-latest	31m 4s
Pytest on 3.8, Bokeh 2, windows-latest	24m 28s
Pytest on 3.8, Bokeh 3, windows-latest	31m 43s
Pytest on 3.11, Bokeh 2, windows-latest	33m 57s
Pytest on 3.11, Bokeh 3, windows-latest	31m 27s
	5h 43m 53s

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