Merge pull request #696 from scala-steward/update/sbt-scalaxb-1.12.0

Update sbt-scalaxb to 1.12.0

Author: mcmpp

project/plugins.sbt

@@ -3,7 +3,7 @@ addSbtPlugin("com.github.sbt" % "sbt-native-packager" % "1.9.16")
 addSbtPlugin("org.scalariform" % "sbt-scalariform" % "1.8.3")
 addSbtPlugin("org.scalastyle" %% "scalastyle-sbt-plugin" % "1.0.0")
 
-addSbtPlugin("org.scalaxb" % "sbt-scalaxb" % "1.9.0")
+addSbtPlugin("org.scalaxb" % "sbt-scalaxb" % "1.12.0")
 
 addSbtPlugin("com.eed3si9n" % "sbt-assembly" % "2.1.5")
 //addSbtPlugin("ch.epfl.scala" % "sbt-scalafix" % "0.5.10")