Derive junit-platform-launcher and junit5Version from sbt-jupiter-interface plugin#1015

pjfanning merged 5 commits into

apache:mainapache/pekko-http:mainfrom

pjfanning:copilot/remove-hard-coded-junit-versionpjfanning/incubator-pekko-http:copilot/remove-hard-coded-junit-versionCopy head branch name to clipboard