Update sbt-sonatype to 3.12.0

Author: scala-steward-bot

project/plugin.sbt

@@ -2,7 +2,7 @@ addSbtPlugin("com.github.sbt" % "sbt-pgp" % "2.3.0")
 
 addSbtPlugin("com.github.sbt" % "sbt-release" % "1.4.0")
 
-addSbtPlugin("org.xerial.sbt" % "sbt-sonatype" % "3.11.3")
+addSbtPlugin("org.xerial.sbt" % "sbt-sonatype" % "3.12.0")
 
 scalacOptions ++= (
   "-deprecation" ::