[WIP][ci] Add worfklow stopper (#4551)

PR to implements workflow stopper - a custom solution to stop all
workflows if one of a required jobs failed. Previously we had the same
solution in GitLab and it saved a lot of compute. Because GitHub doesn't
have one united pipeline and instead it has multiple workflows something
like this has to be implemented.

cc https://github.com/paritytech/ci_cd/issues/939