Bug#920714: lombok: Build-Depends on openjdk-8-jdk which will no be in buster

[Emmanuel Bourg]

Control: severity -1 wishlist

Hi Andreas,

Actually lombok is the exception that is forcing us to ship (but not
support) openjdk-8-jdk in Buster. It's a build time only dependency,
lombok works with OpenJDK 11 at runtime.

Emmanuel Bourg