Update sbt-scoverage to 2.0.12

Author: scala-steward

project/plugins.sbt

@@ -5,5 +5,5 @@ addSbtPlugin("com.typesafe.sbt" % "sbt-git" % "1.0.2")
 addSbtPlugin("com.typesafe.sbt" % "sbt-site" % "1.4.1")
 addSbtPlugin("org.scoverage" % "sbt-coveralls" % "1.3.11")
 addSbtPlugin("org.scalameta" % "sbt-scalafmt" % "2.5.2")
-addSbtPlugin("org.scoverage" % "sbt-scoverage" % "2.0.0")
+addSbtPlugin("org.scoverage" % "sbt-scoverage" % "2.0.12")
 addSbtPlugin("com.github.sbt" % "sbt-ci-release" % "1.5.10")