??????[Disscuss] new label for adding regression test

+1 need a guide --  -- ??: "dev"

[Disscuss] new label for adding regression test

Hi all, I created a new github label "kind/need-regression-test". If we think that an issue or pull request need to add regression test, please add this label to it. The purpose of this label is to prevent missing cases, and once a case is added, it needs to be removed manually. -- 此致！Best