Bokeh 3 compatibility [docs]

[ahartikainen]

Description

Checklist

• Follows official PR format
• Includes a sample plot to visually illustrate the changes (only for plot-related functions)
• New features are properly documented (with an example if appropriate)?
• Includes new or updated tests to cover the new feature
• Code style correct (follows pylint and black guidelines)
• Changes are listed in changelog

[codecov]

Codecov Report

Merging #1919 (e8e6e21) into main (041aced) will increase coverage by 2.89%.
The diff coverage is 100.00%.

❗ Current head e8e6e21 differs from pull request most recent head f9f053e. Consider uploading reports for the commit f9f053e to get more accurate results

@@            Coverage Diff             @@
##             main    #1919      +/-   ##
==========================================
+ Coverage   88.34%   91.23%   +2.89%     
==========================================
  Files         117      117              
  Lines       12454    12454              
==========================================
+ Hits        11002    11363     +361     
+ Misses       1452     1091     -361     

Impacted Files	Coverage Δ
arviz/plots/backends/bokeh/essplot.py	98.52% <100.00%> (ø)
arviz/data/base.py	98.21% <0.00%> (+0.59%)	⬆️
arviz/data/io_emcee.py	98.34% <0.00%> (+2.47%)	⬆️
arviz/data/io_cmdstanpy.py	95.43% <0.00%> (+34.52%)	⬆️
arviz/data/io_pystan.py	96.08% <0.00%> (+46.82%)	⬆️

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