backport: v1.20.2

[hoxbro]

!!! DO NOT MERGE !!!
!!! DO NOT DELETE THE BRANCH !!!

[codecov]

Codecov Report

Attention: Patch coverage is 92.00000% with 2 lines in your changes missing coverage. Please review.

Project coverage is 88.79%. Comparing base (d12d3df) to head (17946ac).
Report is 13 commits behind head on main.

Files with missing lines	Patch %	Lines
holoviews/tests/ui/bokeh/test_callback.py	71.42%	2 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #6537      +/-   ##
==========================================
+ Coverage   88.76%   88.79%   +0.02%     
==========================================
  Files         323      323              
  Lines       68734    68961     +227     
==========================================
+ Hits        61013    61235     +222     
- Misses       7721     7726       +5     

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