build: Update BokehJS version

[hoxbro]

To see that everything runs as expected.

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 87.10%. Comparing base (8116454) to head (81ca649).
Report is 7 commits behind head on main.

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #7906      +/-   ##
==========================================
- Coverage   87.10%   87.10%   -0.01%     
==========================================
  Files         346      346              
  Lines       53133    53146      +13     
==========================================
+ Hits        46283    46293      +10     
- Misses       6850     6853       +3     

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[hoxbro]

Let's wait for the final release before merging.