Update Build and Docs CI for dev release

[hoxbro]

Fixes failing CI build and docs

• Also update docs to use holoviz_tasks/install
• Uploaded thumbnails to S3 so it doesn't need to create them for each documentation build.
• Also fixing a problem with https://holoviews.org/gallery/demos/matplotlib/network_graph.html erroring out

[codecov-commenter]

Codecov Report

Merging #5802 (55e4e3e) into main (3d3dad9) will decrease coverage by 65.51%.
The diff coverage is n/a.

@@             Coverage Diff             @@
##             main    #5802       +/-   ##
===========================================
- Coverage   87.91%   22.40%   -65.51%     
===========================================
  Files         307      307               
  Lines       62897    62895        -2     
===========================================
- Hits        55296    14092    -41204     
- Misses       7601    48803    +41202     

Flag	Coverage Δ
ui-tests	22.40% <ø> (+<0.01%)	⬆️

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

see 290 files with indirect coverage changes

📣 We’re building smart automated test selection to slash your CI/CD build times. Learn more

[hoxbro]

I think we have a perfect storm of things not working right now:

On Mac Mamba fails with Library not loaded: '@rpath/libarchive.13.dylib'
https://github.com/holoviz/holoviews/actions/runs/5529593220/jobs/10087878559#step:2:2137

and on Windows Conda fails with Warning: ERROR during elevated execution.
https://github.com/holoviz/holoviews/actions/runs/5529593220/jobs/10087878828#step:2:1363

[github-actions]

This pull request has been automatically locked since there has not been any recent activity after it was closed. Please open a new issue for related bugs.