Add comm for pipeline incident SLO and pipeline status danger rule
What does this MR do and why?
Making this MR retrospectively for #441 (comment 1866120833) and https://gitlab.slack.com/archives/CMA7DQJRX/p1712261697041179
Making this MR retrospectively for #441 (comment 1866120833) and https://gitlab.slack.com/archives/CMA7DQJRX/p1712261697041179