[PR #14258/d6fa26c6 backport][9.0.x] docs: note pyproject minversion compatibility with pytest<6#14267

bluetech merged 1 commit into9.0.xpytest-dev/pytest:9.0.xfrom

patchback/backports/9.0.x/d6fa26c62873ea648272b337f2dc45d095394745/pr-14258pytest-dev/pytest:patchback/backports/9.0.x/d6fa26c62873ea648272b337f2dc45d095394745/pr-14258Copy head branch name to clipboard