This commit moves the tests for recommended versions of dependencies referenced in `readme.html` to a new location for better context. Also updates test class name for clarity, and `@covers` annotations to `@coversNothing`.
Follow-up to [26166], [33946], [35172], [52418], [52424].
Props ironprogrammer, bbobnis, antonvlasenko, azaozz, chaion07, priyomukul.
Fixes#45867.
git-svn-id: https://develop.svn.wordpress.org/trunk@54479 602fd350-edb4-49c9-b593-d223f7449a82
