[CI] Add slack alerts to tracked branch jobs#66580

Merged

brianseeders merged 2 commits intoelastic:masterfrom brianseeders:more-slack-alerts

May 15, 2020

+34-15

Commits on May 14, 2020

Add slack alerts to tracked branch jobs, change default channel, change formatting
brianseeders
committed
Merge branch 'master' into more-slack-alerts
elasticmachine
authored