Disable add_html_cache_busting on Sphinx 7.1+

[AA-Turner]

PR summary

Hi,

In sphinx-doc/sphinx#11518, @story645 noted that MPL's documentation failed when running with Sphinx 7.1. This PR disables the custom add_html_cache_busting() function within conf.py when running on Sphinx 7.1 and later, in favour of Sphinx's new native asset checksum support.

Thanks,
Adam

PR checklist

• "closes #0000" is in the body of the PR description to link the related issue
• new and changed code is tested
• Plotting related features are demonstrated in an example
• New Features and API Changes are noted with a directive and release note
• Documentation complies with general and docstring guidelines

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[story645]

Thanks so much for fixing this and extra thanks for doing it so quickly!

[lumberbot-app]

Owee, I'm MrMeeseeks, Look at me.

There seem to be a conflict, please backport manually. Here are approximate instructions:

1. Checkout backport branch and update it.

git checkout v3.7.x
git pull

2. Cherry pick the first parent branch of the this PR on top of the older branch:

git cherry-pick -x -m1 48e28914d02dc5d50e3945b29f3d83da645b765f

3. You will likely have some merge/cherry-pick conflict here, fix them and commit:

git commit -am 'Backport PR #26493: Disable ``add_html_cache_busting`` on Sphinx 7.1+'

4. Push to a named branch:

git push YOURFORK v3.7.x:auto-backport-of-pr-26493-on-v3.7.x

5. Create a PR against branch v3.7.x, I would have named this PR:

"Backport PR #26493 on branch v3.7.x (Disable add_html_cache_busting on Sphinx 7.1+)"

And apply the correct labels and milestones.

Congratulations — you did some good work! Hopefully your backport PR will be tested by the continuous integration and merged soon!

Remember to remove the Still Needs Manual Backport label once the PR gets merged.

If these instructions are inaccurate, feel free to suggest an improvement.

[lumberbot-app]

Something went wrong ... Please have a look at my logs.

It seems that the branch you are trying to backport to does not exist.

[QuLogic]

@meeseeksdev backport to v3.8.x