Enable Bugbear 904 - Within an except clause, raise exceptions with from err or from None

[Hoxbro]

Ref: https://docs.astral.sh/ruff/rules/raise-without-from-inside-except/

[codecov-commenter]

Codecov Report

Attention: 24 lines in your changes are missing coverage. Please review.

Comparison is base (ba29c24) 88.58% compared to head (8b20ebb) 88.56%.

Files	Patch %	Lines
holoviews/core/io.py	0.00%	4 Missing ⚠️
holoviews/util/__init__.py	0.00%	3 Missing ⚠️
holoviews/ipython/__init__.py	0.00%	2 Missing ⚠️
holoviews/operation/stats.py	0.00%	2 Missing ⚠️
holoviews/plotting/util.py	0.00%	2 Missing ⚠️
holoviews/core/dimension.py	0.00%	1 Missing ⚠️
holoviews/element/comparison.py	88.88%	1 Missing ⚠️
holoviews/element/graphs.py	0.00%	1 Missing ⚠️
holoviews/element/raster.py	0.00%	1 Missing ⚠️
holoviews/operation/datashader.py	0.00%	1 Missing ⚠️
... and 6 more

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #5992      +/-   ##
==========================================
- Coverage   88.58%   88.56%   -0.02%     
==========================================
  Files         315      315              
  Lines       65573    65573              
==========================================
- Hits        58086    58076      -10     
- Misses       7487     7497      +10     

Flag	Coverage Δ
ui-tests	23.15% <0.00%> (ø)

Flags with carried forward coverage won't be shown. Click here to find out more.

☔ View full report in Codecov by Sentry.
📢 Have feedback on the report? Share it here.