[sbt] Run in CI mode

[prabhu]

Noticed this while creating an SBOM for chen. sbt was entering an interactive mode for one of the projects and eventually erroring out.

Suspect we may have to set -Dsbt.ci=true, to make sbt work properly.

https://www.scala-sbt.org/1.x/docs/Command-Line-Reference.html#Other+system+properties

This is the place where you can add this.

https://github.com/CycloneDX/cdxgen/blob/master/index.js#L1757