[docs] Python Documentation: Grammar Error in 'unittest' documentation: "associate -> associated"

[Julien Palard]

Hi, thanks for reporting.

> A test fixture represents the preparation needed to perform one or more tests, and any ***associated*** cleanup actions. This may involve, for example, creating temporary or proxy databases, directories, or starting a server process.

I opened a PR about it here: https://github.com/python/cpython/pull/11315 does it looks OK?

Bests,
-- 
Julien Palard
https://mdk.fr