Don't run plausible analytics out of docs.python.org

[JulienPalard]

Documentation

Since e8ab009, an HTTP request to plausible.io is triggered even for local builds.

So I just triggered the tracker with a local build just to check a PR (this is how I discovered it, by seeing uBlock Origin telling me it blocked it).

I don't feel that's OK as it means that Linux packages containing the Python doc, like python3-doc will embed the tracker too (or every distrib will take the pain to remove it...).

I think e8ab009 should be reverted and maybe implemented on docsbuild-scripts, or at least be made optional (using an environment flag?) and disabled by default so we could enable it in docsbuild-script.

Linked PRs

• gh-107136: Remove Plausible for docs metrics #107856
• [3.12] gh-107136: Remove Plausible for docs metrics (GH-107856) #108334
• [3.11] gh-107136: Remove Plausible for docs metrics (GH-107856) #108335

[hugovk]

Thanks for raising this, I suggest we let the trial run to its end (there are 8 days left), revert, and then look into those options if we continue using it.

[hugovk]

PRs were merged, let's close this now. Thanks!