simplify report headers creation

3 jobs for master in 14 minutes and 17 seconds (queued for 1 second)
Status Job ID Name Coverage
  Test
passed #62394
mbr
test-sbt

00:10:33

 
  Build
passed #62395
mbr
assembly-sbt

00:01:46

 
  Publish
passed #62396
mbr
build-latest-image

00:01:56