Update sbt-scoverage to 2.0.6 (#114)

Author: paoloboni

project/plugins.sbt

@@ -4,4 +4,4 @@ addSbtPlugin("org.xerial.sbt"            % "sbt-sonatype"  % "3.9.13")
 addSbtPlugin("de.heikoseeberger"         % "sbt-header"    % "5.8.0")
 addSbtPlugin("com.github.sbt"            % "sbt-release"   % "1.1.0")
 addSbtPlugin("io.github.davidgregory084" % "sbt-tpolecat"  % "0.4.1")
-addSbtPlugin("org.scoverage"             % "sbt-scoverage" % "2.0.5")
+addSbtPlugin("org.scoverage"             % "sbt-scoverage" % "2.0.6")