Update sbt-scoverage to 2.0.4

Author: scala-steward

project/plugins.sbt

@@ -11,4 +11,4 @@ addSbtPlugin("io.github.davidgregory084" % "sbt-tpolecat" % "0.4.1")
 addSbtPlugin("pl.project13.scala" % "sbt-jmh" % "0.4.3")
 addSbtPlugin("org.portable-scala" % "sbt-scalajs-crossproject" % "1.2.0")
 addSbtPlugin("org.scalameta" % "sbt-mdoc" % "2.3.6")
-addSbtPlugin("org.scoverage" % "sbt-scoverage" % "2.0.0")
+addSbtPlugin("org.scoverage" % "sbt-scoverage" % "2.0.4")