Add logic to continuously groom regression label hygiene.
Following up on the proposal in https://gitlab.com/gitlab-org/gitlab-ce/issues/48518#proposal.
We want to add the following triage logic to gitlab-triage.
- If an issue only has the
regression
label, automatically add the ~bug label - If an issue only has the
regression:xx.x
label, automatically add the regression label - If an issue has the
regression
label but noregression:xx.x
label, post a message to remind the author or EM to set aregression:xx.x
label.
/cc @gl-quality