Update sbt-scoverage to 1.8.1

Author: 47erbot

project/plugins.sbt

@@ -1,6 +1,6 @@
 addSbtPlugin("com.geirsson"              % "sbt-ci-release"           % "1.5.7")
 addSbtPlugin("com.47deg"                 % "sbt-microsites"           % "1.3.4")
-addSbtPlugin("org.scoverage"             % "sbt-scoverage"            % "1.8.0")
+addSbtPlugin("org.scoverage"             % "sbt-scoverage"            % "1.8.1")
 addSbtPlugin("org.scalameta"             % "sbt-scalafmt"             % "2.4.2")
 addSbtPlugin("org.scalameta"             % "sbt-mdoc"                 % "2.2.21")
 addSbtPlugin("com.eed3si9n"              % "sbt-unidoc"               % "0.4.3")