configs/releng: improve UX

Implements #90
3 jobs for master in 40 minutes and 40 seconds (queued for 4 seconds)
Status Name Job ID Coverage
  Lint
passed shellcheck #18455

00:00:18

 
  Build
passed build:secure: [baseline] #18456
secure

00:17:55

passed build:secure: [releng] #18457
secure

00:40:20