Merge pull request #573 from scala-steward/update/sbt-scoverage-2.0.12

Update sbt-scoverage to 2.0.12

Author: mergify[bot]

project/plugins.sbt

@@ -1,5 +1,5 @@
 addSbtPlugin("org.scala-js"   % "sbt-scalajs"    % "1.10.1")
 addSbtPlugin("org.scalameta"  % "sbt-scalafmt"   % "2.5.2")
 addSbtPlugin("com.github.sbt" % "sbt-release"    % "1.4.0")
-addSbtPlugin("org.scoverage"  % "sbt-scoverage"  % "2.0.11")
+addSbtPlugin("org.scoverage"  % "sbt-scoverage"  % "2.0.12")
 addSbtPlugin("com.github.sbt" % "sbt-ci-release" % "1.5.12")